deps: update dependency com.google.cloud:google-cloud-core to v2.1.0 (#661)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-core](https://togithub.com/googleapis/java-core) | `2.0.5` -> `2.1.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.1.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.1.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.1.0/compatibility-slim/2.0.5)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.1.0/confidence-slim/2.0.5)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-core</summary>

### [`v2.1.0`](https://togithub.com/googleapis/java-core/blob/master/CHANGELOG.md#&#8203;210-httpswwwgithubcomgoogleapisjava-corecomparev205v210-2021-08-23)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.0.5...v2.1.0)

##### Features

-   support downloading an emulator from an access controlled URL ([#&#8203;513](https://www.togithub.com/googleapis/java-core/issues/513)) ([f42a707](https://www.github.com/googleapis/java-core/commit/f42a7078522461018da96196a67657809d28b15b))

##### Dependencies

-   update dependency com.google.api:gax-bom to v2.3.0 ([#&#8203;523](https://www.togithub.com/googleapis/java-core/issues/523)) ([6fa1d96](https://www.github.com/googleapis/java-core/commit/6fa1d96d07a7d255e7564407364216436cad6ca3))
-   update dependency com.google.auth:google-auth-library-bom to v1.1.0 ([#&#8203;526](https://www.togithub.com/googleapis/java-core/issues/526)) ([0fc1532](https://www.github.com/googleapis/java-core/commit/0fc1532183148d09c3005a68e528c6c438cb6ddd))
-   update dependency com.google.code.gson:gson to v2.8.8 ([#&#8203;529](https://www.togithub.com/googleapis/java-core/issues/529)) ([92b7f97](https://www.github.com/googleapis/java-core/commit/92b7f9715eeab0a07b64437a62dd47e5eed006de))
-   update dependency com.google.errorprone:error_prone_annotations to v2.9.0 ([#&#8203;528](https://www.togithub.com/googleapis/java-core/issues/528)) ([5ecba07](https://www.github.com/googleapis/java-core/commit/5ecba07336499fc6fddae4cfdc2bc12105ec9b66))
-   update dependency io.grpc:grpc-bom to v1.40.0 ([#&#8203;525](https://www.togithub.com/googleapis/java-core/issues/525)) ([a1e81f7](https://www.github.com/googleapis/java-core/commit/a1e81f73a4cc29e7186adf37f1cb718c1a88f41e))

##### [2.0.5](https://www.github.com/googleapis/java-core/compare/v2.0.4...v2.0.5) (2021-08-11)

##### Dependencies

-   update dependency com.google.api:gax-bom to v2.1.0 ([#&#8203;519](https://www.togithub.com/googleapis/java-core/issues/519)) ([266e2f7](https://www.github.com/googleapis/java-core/commit/266e2f75e83fe1fd635a1528deb38131b8bfc742))

##### [2.0.4](https://www.github.com/googleapis/java-core/compare/v2.0.3...v2.0.4) (2021-08-11)

##### Dependencies

-   update dependency com.google.api:api-common to v2.0.1 ([#&#8203;516](https://www.togithub.com/googleapis/java-core/issues/516)) ([aa6abf3](https://www.github.com/googleapis/java-core/commit/aa6abf3cc458ca117ec009fb29a14fd4f5409ef3))

##### [2.0.3](https://www.github.com/googleapis/java-core/compare/v2.0.2...v2.0.3) (2021-08-10)

##### Dependencies

-   update dependency com.google.errorprone:error_prone_annotations to v2.8.1 ([#&#8203;512](https://www.togithub.com/googleapis/java-core/issues/512)) ([6127b8f](https://www.github.com/googleapis/java-core/commit/6127b8f23ec267a4cf8daa794b88a5cd97f054e3))

##### [2.0.2](https://www.github.com/googleapis/java-core/compare/v2.0.1...v2.0.2) (2021-08-03)

##### Features

-   release 2.0.2 ([#&#8203;509](https://www.togithub.com/googleapis/java-core/issues/509)) ([afbb532](https://www.github.com/googleapis/java-core/commit/afbb532965a9ab6f9e3eafbf9d5d8502dd29d1bb))

##### [2.0.1](https://www.github.com/googleapis/java-core/compare/v2.0.0...v2.0.1) (2021-08-03)

##### Dependencies

-   update dependency com.google.api:gax-bom to v2 ([#&#8203;506](https://www.togithub.com/googleapis/java-core/issues/506)) ([a0c49a2](https://www.github.com/googleapis/java-core/commit/a0c49a2eb2579df78afccc6db021e78c3bd58493))

</details>

---

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Author: renovate-bot

dialogflow/snippets/pom.xml

@@ -47,7 +47,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.0.5</version>
+      <version>2.1.0</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>