Update dependency gitpython to v3.1.45 (#2503)

Co-authored-by: elastic-renovate-prod[bot] <174716857+elastic-renovate-prod[bot]@users.noreply.github.com>
Co-authored-by: Michael Wolf <[email protected]>

Author: elastic-renovate-prod[bot]

scripts/requirements.txt

@@ -2,6 +2,6 @@ pip
 # License: MIT
 PyYAML==6.0.2
 # License: BSD
-gitpython==3.1.44
+gitpython==3.1.45
 # License: BSD
 Jinja2==3.1.6