build: add --stamp flag to the release config (angular#34890)

In a recent upgrade of rules_nodejs an update was made the
stamping logic in npm_package.  Triggering stamping for npm_package
now require the --stamp flag.

PR Close angular#34890

Author: josephperrott

.bazelrc

@@ -43,6 +43,7 @@ test --incompatible_strict_action_env
 # This command assumes node on the path and is a workaround for
 # https://github.com/bazelbuild/bazel/issues/4802
 build:release --workspace_status_command="node ./tools/bazel_stamp_vars.js"
+build:release --stamp
 
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