deps: update dependency com.google.cloud:google-cloud-firestore-bom to v3.8.2 (#5849)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-firestore-bom](https://togithub.com/googleapis/java-firestore) | `3.8.1` -> `3.8.2` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-firestore-bom/3.8.2/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-firestore-bom/3.8.2/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-firestore-bom/3.8.2/compatibility-slim/3.8.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-firestore-bom/3.8.2/confidence-slim/3.8.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v3.8.2`](https://togithub.com/googleapis/java-firestore/blob/HEAD/CHANGELOG.md#&#8203;382-httpsgithubcomgoogleapisjava-firestorecomparev381v382-2023-03-02)

[Compare Source](https://togithub.com/googleapis/java-firestore/compare/v3.8.1...v3.8.2)

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.4.0 ([#&#8203;1219](https://togithub.com/googleapis/java-firestore/issues/1219)) ([fe84125](https://togithub.com/googleapis/java-firestore/commit/fe84125054618bb1dbcfa1d648369a8df0120531))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -200,7 +200,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-firestore-bom</artifactId>
-        <version>3.8.1</version>
+        <version>3.8.2</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>