build(deps): update dependency com.google.cloud:google-cloud-shared-config to v1.5.3 (#268)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-shared-config](https://togithub.com/googleapis/java-shared-config) | `1.5.1` -> `1.5.3` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-config/1.5.3/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-config/1.5.3/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-config/1.5.3/compatibility-slim/1.5.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-config/1.5.3/confidence-slim/1.5.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-shared-config</summary>

### [`v1.5.3`](https://togithub.com/googleapis/java-shared-config/blob/HEAD/CHANGELOG.md#&#8203;153-httpsgithubcomgoogleapisjava-shared-configcomparev152v153-2022-07-27)

[Compare Source](https://togithub.com/googleapis/java-shared-config/compare/v1.5.2...v1.5.3)

##### Dependencies

-   update dependency org.junit.vintage:junit-vintage-engine to v5.9.0 ([#&#8203;497](https://togithub.com/googleapis/java-shared-config/issues/497)) ([1fc6ab4](https://togithub.com/googleapis/java-shared-config/commit/1fc6ab445624cd4f9c8b161d109f346a9e5ed09a))
-   Update doclet to latest version 1.6.0 ([38fb7c3](https://togithub.com/googleapis/java-shared-config/commit/38fb7c3957fb6c9b2da10f9e463cc93a8b80a3a4))

### [`v1.5.2`](https://togithub.com/googleapis/java-shared-config/blob/HEAD/CHANGELOG.md#&#8203;152-httpsgithubcomgoogleapisjava-shared-configcomparev151v152-2022-07-25)

[Compare Source](https://togithub.com/googleapis/java-shared-config/compare/v1.5.1...v1.5.2)

##### Dependencies

-   update dependency com.puppycrawl.tools:checkstyle to v10 ([#&#8203;435](https://togithub.com/googleapis/java-shared-config/issues/435)) ([bfc8ce1](https://togithub.com/googleapis/java-shared-config/commit/bfc8ce1deca6292147d002d3afe22a09840aa5d6))
-   update dependency org.graalvm.buildtools:junit-platform-native to v0.9.13 ([#&#8203;488](https://togithub.com/googleapis/java-shared-config/issues/488)) ([39b91ee](https://togithub.com/googleapis/java-shared-config/commit/39b91ee1283f0a5fbbe63e8bfd1ec97ab4ab377e))
-   update dependency org.graalvm.buildtools:native-maven-plugin to v0.9.13 ([#&#8203;489](https://togithub.com/googleapis/java-shared-config/issues/489)) ([cc3bcfa](https://togithub.com/googleapis/java-shared-config/commit/cc3bcfa2d6717441a8d5b5048fa78c2cf7aabf2b))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-appengine-admin).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzMi4xMzUuMSIsInVwZGF0ZWRJblZlciI6IjMyLjEzNS4xIn0=-->

Author: renovate-bot

java-appengine-admin/google-cloud-appengine-admin-bom/pom.xml

@@ -8,7 +8,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.1</version>
+    <version>1.5.3</version>
   </parent>
 
   <name>Google App Engine Admin API BOM</name>

java-appengine-admin/pom.xml

@@ -14,7 +14,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.1</version>
+    <version>1.5.3</version>
   </parent>
 
   <developers>