chore(deps): Update gapic-generator-java to 2.21.0 (#1353)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 538365689

Source-Link: https://togithub.com/googleapis/googleapis/commit/7ac8a2479bd197e4d7533e1ae9bf1877823f0c26

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/e58eedb75d3c07878097cdfbfd3ffdb7646763a3
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chore: upgrading protobuf to 23.2 for code generation

PiperOrigin-RevId: 537035741

Source-Link: https://togithub.com/googleapis/googleapis/commit/640f7439448629156b3ff30adc0332cc8b7ce52c

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/5ec02ed2022878f99c94c763060ff6a018896b6e
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chore: upgrading Protobuf to 23.1 and gRPC to 1.55.0 in code generation

PiperOrigin-RevId: 534084593

Source-Link: https://togithub.com/googleapis/googleapis/commit/aa4559a97f79225fc57c9f70b5f84fe620e8292e

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/370325af8236732f5885f5940e0ef481fee83003
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Author: gcf-owl-bot[bot]

google-cloud-logging/src/main/java/com/google/cloud/logging/Instrumentation.java

@@ -224,7 +224,7 @@ static boolean setInstrumentationStatus(boolean value) {
   /**
    * Returns a library version associated with given class
    *
-   * @param libraryClass {Class<?>} The class to be used to determine a library version
+   * @param libraryClass The class to be used to determine a library version
    * @return The version number string for given class or DEFAULT_INSTRUMENTATION_VERSION if class
    *     library version cannot be detected
    */