unable to access 'https://github.com/boostorg/math.git/': The requested URL returned error: 504

Fetched in submodule path 'ext_libs/vowpal_wabbit/ext_libs/boost_math', but it did not contain ed01dae24893bb69c02c6d599acc74bdb8f46bda. Direct fetching of that commit failed.

Failed to recurse into submodule path 'ext_libs/vowpal_wabbit'

The process '/usr/local/bin/git' failed with exit code 128

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/