[interop] Add 1.63.2 release of grpc-go to interop matrix (#36305)

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Closes #36305

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36305 from ginayeh:go_release 6eb1f2cdc1
PiperOrigin-RevId: 623317762

tools/interop_matrix/client_matrix.py

@@ -298,7 +298,7 @@ LANG_RELEASE_MATRIX = {
             ("v1.60.1", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.61.2", ReleaseInfo(runtimes=["go1.19"])),
             ("v1.62.2", ReleaseInfo(runtimes=["go1.19"])),
-            ("v1.63.0", ReleaseInfo(runtimes=["go1.19"])),
+            ("v1.63.2", ReleaseInfo(runtimes=["go1.19"])),
         ]
     ),
     "java": OrderedDict(