deps: update dependency com.google.cloud:google-cloud-pubsub to v1.12…

…0.20 (#1245)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-pubsub](https://togithub.com/googleapis/java-pubsub) | `1.120.19` -> `1.120.20` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.20/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.20/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.20/compatibility-slim/1.120.19)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.120.20/confidence-slim/1.120.19)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.120.20`](https://togithub.com/googleapis/java-pubsub/blob/HEAD/CHANGELOG.md#&#8203;112020-httpsgithubcomgoogleapisjava-pubsubcomparev112019v112020-2022-10-05)

[Compare Source](https://togithub.com/googleapis/java-pubsub/compare/v1.120.19...v1.120.20)

##### Bug Fixes

-   update protobuf to v3.21.7 ([7c3ea60](https://togithub.com/googleapis/java-pubsub/commit/7c3ea6016e4288beab722a0c53c5ea132794e2bd))

</details>

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README.md

@@ -24,7 +24,7 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub</artifactId>
-  <version>1.120.19</version>
+  <version>1.120.20</version>
 </dependency>
 
 ```

samples/snapshot/pom.xml

@@ -51,7 +51,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.120.19</version>
+      <version>1.120.20</version>
     </dependency>
 
     <dependency>

samples/snippets/pom.xml

@@ -51,7 +51,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.120.19</version>
+      <version>1.120.20</version>
     </dependency>
     <!-- [END pubsublite_java_dependencies] -->
     <!-- [END pubsublite_install_without_bom] -->