release: grpc-java 1.63 gcr image (#36260)

https://fusion2.corp.google.com/ci/kokoro/prod:grpc%2Fcore%2Fexperimental%2Flinux%2Fgrpc_interop_matrix_adhoc/activity/a7576ab2-9c63-4dad-b595-17bdcbf6596e/log

Closes #36260

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36260 from YifeiZhuang:release-163 913768db99
PiperOrigin-RevId: 622195832

tools/interop_matrix/client_matrix.py

@@ -440,6 +440,7 @@ LANG_RELEASE_MATRIX = {
             ("v1.59.1", ReleaseInfo()),
             ("v1.60.1", ReleaseInfo()),
             ("v1.61.0", ReleaseInfo()),
+            ("v1.63.0", ReleaseInfo()),
         ]
     ),
     "python": OrderedDict(