chore: redirect users to google-cloud-java

[chingor13]

Added deprecation notice and redirect to new repository.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[lqiu96]

Error:

JUnit Jupiter:ITWorkloadIdentityFederationTest:awsCredentials()
    MethodSource [className = 'com.google.auth.oauth2.ITWorkloadIdentityFederationTest', methodName = 'awsCredentials', methodParameterTypes = '']
    => com.google.auth.oauth2.GoogleAuthException: Error getting access token for service account: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target, iss: it-service-account@gcloud-devel.iam.gserviceaccount.com
       com.google.auth.oauth2.ServiceAccountCredentials.refreshAccessToken(ServiceAccountCredentials.java:581)
       com.google.auth.oauth2.OAuth2Credentials$1.call(OAuth2Credentials.java:273)
       com.google.auth.oauth2.OAuth2Credentials$1.call(OAuth2Credentials.java:270)
       java.base@21.0.2/java.util.concurrent.FutureTask.run(FutureTask.java:317)
       com.google.auth.oauth2.OAuth2Credentials$RefreshTask.run(OAuth2Credentials.java:705)
       [...]
     Caused by: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
       java.base@21.0.2/sun.security.ssl.Alert.createSSLException(Alert.java:130)
       java.base@21.0.2/sun.security.ssl.TransportContext.fatal(TransportContext.java:378)
       java.base@21.0.2/sun.security.ssl.TransportContext.fatal(TransportContext.java:321)
       java.base@21.0.2/sun.security.ssl.TransportContext.fatal(TransportContext.java:316)
       java.base@21.0.2/sun.security.ssl.CertificateMessage$T13CertificateConsumer.checkServerCerts(CertificateMessage.java:1318)
       [...]
     Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
       java.base@21.0.2/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:388)
       java.base@21.0.2/sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:271)
       java.base@21.0.2/sun.security.validator.Validator.validate(Validator.java:256)
       java.base@21.0.2/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:230)
       java.base@21.0.2/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132)
       [...]
     Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
       java.base@21.0.2/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:148)
       java.base@21.0.2/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:129)
       java.base@21.0.2/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297)
       java.base@21.0.2/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:383)
       [...]
       ```