Add --experimental_strict_action_env to bazel.rc
This ensures environment variables are static across machines and allows for cross-user caching.
build --workspace_status_command tools/buildstamp/get_workspace_status
build --auto_cpu_environment_group=//buildenv:cpu
+
+# Ensure environment variables are static across machines; allows for cross-user caching.
+build --experimental_strict_action_env
