deps: update dependency com.google.auth:google-auth-library-bom to v0.26.0 (#368)

Author: renovate-bot

java-shared-dependencies/pom.xml

@@ -62,7 +62,7 @@
  <google.api-common.version>1.10.3</google.api-common.version>
  <google.common-protos.version>2.2.1</google.common-protos.version>
  <google.core.version>1.94.8</google.core.version>
- <google.auth.version>0.25.5</google.auth.version>
+ <google.auth.version>0.26.0</google.auth.version>
  <google.http-client.version>1.39.2</google.http-client.version>
  <google.api-client.version>1.31.5</google.api-client.version>
  <gson.version>2.8.7</gson.version>