Merge branch 'go_release' of github.com:easwars/grpc into go_release

Author: easwars

tools/interop_matrix/client_matrix.py

@@ -306,6 +306,7 @@ def __init__(self, patch=[], runtimes=[], testcases_file=None):
             ("v1.57.2", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.58.3", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.59.0", ReleaseInfo(runtimes=["go1.19"])),
+            ("v1.60.0", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.60.1", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.61.2", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.62.2", ReleaseInfo(runtimes=["go1.19"])),