chore(deps): update dependency com.google.api:gax to v2.23.0 (#1144)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.api:gax](https://togithub.com/googleapis/gapic-generator-java) | `2.22.0` -> `2.23.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.api:gax/2.23.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.api:gax/2.23.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.api:gax/2.23.0/compatibility-slim/2.22.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.api:gax/2.23.0/confidence-slim/2.22.0)](https://docs.renovatebot.com/merge-confidence/) |

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core/pom.xml

@@ -222,7 +222,7 @@
     <dependency>
       <groupId>com.google.api</groupId>
       <artifactId>gax</artifactId>
-      <version>2.22.0</version>
+      <version>2.23.0</version>
       <exclusions>
         <!-- Native image users only need GAX's native-image metadata. GAX's
         dependencies are unnecessary for normal users and native image users -->