Verify git ref for DCS-BIOS live

[emcek]

Snippet:

from git import Repo, BadName

commit_hash = 'abcde'  # Replace this with the actual hash

repo = Repo('.')  # Use the repository in the current directory
try:
    commit = repo.commit(commit_hash)
    print(f"The commit {commit_hash} exists in the local repository.")
except BadName:
    print(f"The commit {commit_hash} is not found in the local repository.")

[emcek]

Done under: #174