[chore][processor/interval][processor/deltatocumulative] Add missing code owners (#33019)

**Description:** <Describe what has changed.>
<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
@jpkrohling and @djaglowski volunteered to be sponsors of the delta to
cumulative processor, and @djaglowski also volunteered to be sponsor of
the interval processor in relation to this. They should also be code
owners.

From
[CONTRIBUTING.md](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#adding-new-components):
```
A sponsor is an approver who will be in charge of being the official reviewer of the code and become a code owner for the component.
```

**Link to tracking Issue:** <Issue number if applicable>

#30479
- Delta to cumulative processor

#29461
- Interval processor

---------

Co-authored-by: Juraci Paixão Kröhling <[email protected]>

Author: crobert-1

.github/CODEOWNERS

@@ -160,12 +160,12 @@ pkg/winperfcounters/                                     @open-telemetry/collect
 
 processor/attributesprocessor/                           @open-telemetry/collector-contrib-approvers @boostchicken
 processor/cumulativetodeltaprocessor/                    @open-telemetry/collector-contrib-approvers @TylerHelmuth
-processor/deltatocumulativeprocessor/                    @open-telemetry/collector-contrib-approvers @sh0rez @RichieSams
+processor/deltatocumulativeprocessor/                    @open-telemetry/collector-contrib-approvers @sh0rez @RichieSams @jpkrohling
 processor/deltatorateprocessor/                          @open-telemetry/collector-contrib-approvers @Aneurysm9
 processor/filterprocessor/                               @open-telemetry/collector-contrib-approvers @TylerHelmuth @boostchicken
 processor/groupbyattrsprocessor/                         @open-telemetry/collector-contrib-approvers @rnishtala-sumo
 processor/groupbytraceprocessor/                         @open-telemetry/collector-contrib-approvers @jpkrohling
-processor/intervalprocessor/                             @open-telemetry/collector-contrib-approvers @RichieSams @sh0rez
+processor/intervalprocessor/                             @open-telemetry/collector-contrib-approvers @RichieSams @sh0rez @djaglowski
 processor/k8sattributesprocessor/                        @open-telemetry/collector-contrib-approvers @dmitryax @rmfitzpatrick @fatsheep9146 @TylerHelmuth
 processor/logstransformprocessor/                        @open-telemetry/collector-contrib-approvers @djaglowski @dehaansa
 processor/metricsgenerationprocessor/                    @open-telemetry/collector-contrib-approvers @Aneurysm9

processor/deltatocumulativeprocessor/README.md

@@ -7,7 +7,7 @@
 | Distributions | [] |
 | Warnings      | [Statefulness](#warnings) |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aprocessor%2Fdeltatocumulative%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aprocessor%2Fdeltatocumulative) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aprocessor%2Fdeltatocumulative%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aprocessor%2Fdeltatocumulative) |
-| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@sh0rez](https://www.github.com/sh0rez), [@RichieSams](https://www.github.com/RichieSams) |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@sh0rez](https://www.github.com/sh0rez), [@RichieSams](https://www.github.com/RichieSams), [@jpkrohling](https://www.github.com/jpkrohling) |
 
 [development]: https://github.com/open-telemetry/opentelemetry-collector#development
 <!-- end autogenerated section -->

processor/deltatocumulativeprocessor/metadata.yaml

@@ -8,4 +8,4 @@ status:
   distributions: []
   warnings: [Statefulness]
   codeowners:
-    active: [sh0rez, RichieSams]
+    active: [sh0rez, RichieSams, jpkrohling]

processor/intervalprocessor/README.md

@@ -7,7 +7,7 @@
 | Distributions | [] |
 | Warnings      | [Statefulness](#warnings) |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aprocessor%2Finterval%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aprocessor%2Finterval) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aprocessor%2Finterval%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aprocessor%2Finterval) |
-| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@RichieSams](https://www.github.com/RichieSams), [@sh0rez](https://www.github.com/sh0rez) |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@RichieSams](https://www.github.com/RichieSams), [@sh0rez](https://www.github.com/sh0rez), [@djaglowski](https://www.github.com/djaglowski) |
 
 [development]: https://github.com/open-telemetry/opentelemetry-collector#development
 <!-- end autogenerated section -->

processor/intervalprocessor/metadata.yaml

@@ -8,6 +8,6 @@ status:
   distributions: []
   warnings: [Statefulness]
   codeowners:
-    active: [RichieSams, sh0rez]
+    active: [RichieSams, sh0rez, djaglowski]
 tests:
   config: