chore: Interpret git log grep pattern as literal string

[nieomylnieja]

Motivation

Commits which had special regex characters, like square braces, were causing the git log --grep <pattern> to fail.
We need to interpret these as literal strings, thus -F flag, which as per man git log says:

-F, --fixed-strings
Consider the limiting patterns to be fixed strings (don’t interpret pattern as a regular expression).