chore: re-enable RBE testing

.github/workflows/ci.bazelrc

@@ -37,4 +37,4 @@ build:rbe --remote_executor=grpcs://remote.buildbuddy.io
 # We are using RBE to test that the actions we create in rules_ts will work for our customers,
 # not to accelerate and parallelize the builds for unrelated actions that happen to appear in our dependencies.
 # So, turn off RBE for actions that are known to be problematic because they are non-hermetic.
-build:rbe --modify_execution_info=CppCompile=+no-remote-exec,CppLink=+no-remote-exec,GenProtoDescriptorSet=+no-remote-exec
+build:rbe --modify_execution_info=CppCompile=+no-remote-exec,CppLink=+no-remote-exec,GenProtoDescriptorSet=+no-remote-exec,ProtocGenEs=+no-remote-exec

ts/private/ts_proto_library.bzl

@@ -42,6 +42,7 @@ def _protoc_action(ctx, proto_info, outputs, options = {
         progress_message = "Generating .js/.d.ts from %{label}",
         outputs = outputs,
         inputs = inputs,
+        mnemonic = "ProtocGenEs",
         arguments = [args],
         tools = [ctx.executable.protoc_gen_es] + (
             [ctx.executable.protoc_gen_connect_es] if ctx.attr.has_services else []