deps: update dependency com.google.cloud:google-cloud-pubsub to v1.120.10 (#887)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-pubsub](https://github.com/googleapis/java-pubsub) | `1.120.9` -> `1.120.10` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.10/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.10/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.10/compatibility-slim/1.120.9)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.10/confidence-slim/1.120.9)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.120.10`](https://github.com/googleapis/java-pubsub/blob/HEAD/CHANGELOG.md#&#8203;112010-httpsgithubcomgoogleapisjava-pubsubcomparev11209v112010-2022-08-04)

[Compare Source](https://github.com/googleapis/java-pubsub/compare/v1.120.9...v1.120.10)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-core to v2.8.8 ([#&#8203;1231](https://github.com/googleapis/java-pubsub/issues/1231)) ([9d13dd8](https://github.com/googleapis/java-pubsub/commit/9d13dd8bc43e24815884dde421409136958d4b0f))

</details>

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -36,7 +36,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.120.9</version>
+      <version>1.120.10</version>
     </dependency>
 
     <dependency>

samples/snapshot/pom.xml

@@ -34,7 +34,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.120.9</version>
+      <version>1.120.10</version>
     </dependency>
 
     <dependency>