[release] Add 1.62 to interop matrix (#35972)

Closes #35972

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35972 from eugeneo:release1.62/interop-matrix 1bc8e0f4c7
PiperOrigin-RevId: 609514657

tools/interop_matrix/client_matrix.py

@@ -131,6 +131,7 @@ LANG_RELEASE_MATRIX = {
             ("v1.58.0", ReleaseInfo()),
             ("v1.60.0", ReleaseInfo()),
             ("v1.61.0", ReleaseInfo()),
+            ("v1.62.0", ReleaseInfo()),
         ]
     ),
     "go": OrderedDict(
@@ -771,6 +772,12 @@ LANG_RELEASE_MATRIX = {
                     runtimes=["python"], testcases_file="python__master"
                 ),
             ),
+            (
+                "v1.62.0",
+                ReleaseInfo(
+                    runtimes=["python"], testcases_file="python__master"
+                ),
+            ),
         ]
     ),
     "node": OrderedDict(
@@ -866,6 +873,7 @@ LANG_RELEASE_MATRIX = {
             ("v1.58.0", ReleaseInfo()),
             ("v1.60.0", ReleaseInfo()),
             ("v1.61.0", ReleaseInfo()),
+            ("v1.62.0", ReleaseInfo()),
         ]
     ),
     "php": OrderedDict(
@@ -925,6 +933,7 @@ LANG_RELEASE_MATRIX = {
             ("v1.58.0", ReleaseInfo()),
             ("v1.60.0", ReleaseInfo()),
             ("v1.61.0", ReleaseInfo()),
+            ("v1.62.0", ReleaseInfo()),
         ]
     ),
     "csharp": OrderedDict(