Revert "attempt to bump rbe os to 2404 and see if it is failing with the same error"

This reverts commit ec58311.

Author: aignas

.bazelci/presubmit.yml

@@ -185,7 +185,7 @@ tasks:
     <<: *minimum_supported_version
     <<: *reusable_config
     name: "RBE: Ubuntu, minimum Bazel"
-    platform: rbe_ubuntu2404
+    platform: rbe_ubuntu2204
     build_flags:
       # BazelCI sets --action_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1,
       # which prevents cc toolchain autodetection from working correctly
@@ -203,7 +203,7 @@ tasks:
   rbe:
     <<: *reusable_config
     name: "RBE: Ubuntu"
-    platform: rbe_ubuntu2404
+    platform: rbe_ubuntu2204
     # TODO @aignas 2024-12-11: get the RBE working in CI for bazel 8.0
     # See https://github.com/bazelbuild/rules_python/issues/2499
     bazel: 7.x