deps: update dependency com.google.cloud:google-cloud-pubsub to v1.123.0 (#1303)

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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) | `1.122.2` -> `1.123.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.123.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.123.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.123.0/compatibility-slim/1.122.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsub/1.123.0/confidence-slim/1.122.2)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.123.0`](https://togithub.com/googleapis/java-pubsub/blob/HEAD/CHANGELOG.md#&#8203;11230-httpsgithubcomgoogleapisjava-pubsubcomparev11222v11230-2023-01-10)

[Compare Source](https://togithub.com/googleapis/java-pubsub/compare/v1.122.2...v1.123.0)

##### Features

-   Add schema evolution methods and fields ([#&#8203;1384](https://togithub.com/googleapis/java-pubsub/issues/1384)) ([746a6e0](https://togithub.com/googleapis/java-pubsub/commit/746a6e040eb94d73bfbaece051d08c60c9885326))

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.1.1 ([#&#8203;1450](https://togithub.com/googleapis/java-pubsub/issues/1450)) ([2dcbcad](https://togithub.com/googleapis/java-pubsub/commit/2dcbcadfa56282733ab7998ec9cf360f0a71eaca))

</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>1.122.2</version>
+  <version>1.123.0</version>
 </dependency>
 
 ```

samples/snapshot/pom.xml

@@ -51,7 +51,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.122.2</version>
+      <version>1.123.0</version>
     </dependency>
 
     <dependency>

samples/snippets/pom.xml

@@ -51,7 +51,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.122.2</version>
+      <version>1.123.0</version>
     </dependency>
     <!-- [END pubsublite_java_dependencies] -->
     <!-- [END pubsublite_install_without_bom] -->