Same issue, thought I was going crazy. Are you running it inside nix?
I ended up renaming the Burrito release for every release, this seems to invalidate the cache and fix the issue. Will be montoring my disk space, maybe one folder grows enough to show where it is caching that.
Something like this, and then undoing it by creating a backup file first:
TIMESTAMP=$(date +%s%3N)
sed -i "s/gm_node_bin:/gm_node_bin_${TIMESTAMP}:/g" mix.exs
