Bump com.google.truth.extensions:truth-proto-extension (#4833)

Bumps com.google.truth.extensions:truth-proto-extension from 1.4.2 to 1.4.3.

---
updated-dependencies:
- dependency-name: com.google.truth.extensions:truth-proto-extension
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -151,7 +151,7 @@
     <xmlsec.version>4.0.2</xmlsec.version>
     <protobuf.googleapi.types.version>2.41.0</protobuf.googleapi.types.version>
     <wsdl4j.version>1.6.3</wsdl4j.version>
-    <google.truth.extension.version>1.4.2</google.truth.extension.version>
+    <google.truth.extension.version>1.4.3</google.truth.extension.version>
 
     <!-- Picocli -->
     <picocli.version>4.6.3</picocli.version>