deps: update dependency com.google.cloud:google-cloud-shared-dependencies to v2.3.0 (#68)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-shared-dependencies](https://togithub.com/googleapis/java-shared-dependencies) | `2.2.1` -> `2.3.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/2.3.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/2.3.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/2.3.0/compatibility-slim/2.2.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/2.3.0/confidence-slim/2.2.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.3.0`](https://togithub.com/googleapis/java-shared-dependencies/blob/master/CHANGELOG.md#&#8203;230-httpswwwgithubcomgoogleapisjava-shared-dependenciescompare221v230-2021-09-22)

[Compare Source](https://togithub.com/googleapis/java-shared-dependencies/compare/v2.2.1...v2.3.0)

##### Dependencies

-   keep protobuf at 3.17.3 (not the latest 3.18.0) ([#&#8203;476](https://www.togithub.com/googleapis/java-shared-dependencies/issues/476)) ([e207c81](https://www.github.com/googleapis/java-shared-dependencies/commit/e207c818f220967e3618d7a9d36f2cf26c07892e))
-   update gax.version to v2.5.0 ([#&#8203;479](https://www.togithub.com/googleapis/java-shared-dependencies/issues/479)) ([e22e62a](https://www.github.com/googleapis/java-shared-dependencies/commit/e22e62a3b248023ae94da2a02ec50006377a5157))
-   update google.core.version to v2.1.4 ([#&#8203;473](https://www.togithub.com/googleapis/java-shared-dependencies/issues/473)) ([116f278](https://www.github.com/googleapis/java-shared-dependencies/commit/116f2783dfc18f215905ceaff9f85f331f83472b))
-   update google.core.version to v2.1.6 ([#&#8203;478](https://www.togithub.com/googleapis/java-shared-dependencies/issues/478)) ([9e09728](https://www.github.com/googleapis/java-shared-dependencies/commit/9e0972834764b25e5e194e0e805efc5453120df3))
-   update iam.version to v1.1.1 ([#&#8203;470](https://www.togithub.com/googleapis/java-shared-dependencies/issues/470)) ([3b6e960](https://www.github.com/googleapis/java-shared-dependencies/commit/3b6e96050af8d976a30165481d764d8226143a39))
-   update iam.version to v1.1.2 ([#&#8203;472](https://www.togithub.com/googleapis/java-shared-dependencies/issues/472)) ([85329cc](https://www.github.com/googleapis/java-shared-dependencies/commit/85329cc6c13d16fe2eeeb076959ee16a752c1f9e))

##### [2.2.1](https://www.github.com/googleapis/java-shared-dependencies/compare/2.2.0...v2.2.1) (2021-09-13)

##### Dependencies

-   update gax.version to v2.4.1 ([#&#8203;464](https://www.togithub.com/googleapis/java-shared-dependencies/issues/464)) ([bc7c6d7](https://www.github.com/googleapis/java-shared-dependencies/commit/bc7c6d7ca161ebfa31895c375d65bca29d4c7336))
-   update google.core.version to v2.1.3 ([#&#8203;465](https://www.togithub.com/googleapis/java-shared-dependencies/issues/465)) ([848f608](https://www.github.com/googleapis/java-shared-dependencies/commit/848f608ae850bd2dd80ec56034eb0c9a18f0415b))

</details>

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Author: renovate-bot

pom.xml

@@ -76,7 +76,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>2.2.1</version>
+        <version>2.3.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>