Bug 40049: processes/ReleaseProcess is replaced by gitlab issue templates

Closes #40049

See merge request !45

We also add that the `do-all-signing` script currently does not run
`./macos-signer-proxy`.

- also update code_audit.sh to also print a commit's message/hash
  for further investigation, save reports in script directory, a
  renamed reports to include repo folder name, added cc and hh
  file extensions to c/cpp filter, changed arg order to make it
  easer to change filter for same commit range