fix: pin git version

ran locally and changed Dockerfile from

```
CMD ["/action/workspace/stale_repos.py"]
ENTRYPOINT ["python3", "-u"]
```

to

```
ENTRYPOINT ["dpkg", "-l", "git"]
```

and then ran

`docker run -it --rm --name debug $(docker images --format "{{.ID}} {{.CreatedAt}}" | sort -rk 2 | awk 'NR==1{print $1}') -- /bin/sh`

to echo out the git version installed

`docker images --format "{{.ID}} {{.CreatedAt}}" | sort -rk 2 | awk 'NR==1{print $1}` gets the last image id created after sorting list by creation date

Signed-off-by: jmeridth <[email protected]>

Author: jmeridth

Dockerfile

@@ -17,7 +17,7 @@ COPY requirements.txt stale_repos.py /action/workspace/
 
 RUN python3 -m pip install --no-cache-dir -r requirements.txt \
     && apt-get -y update \
-    && apt-get -y install --no-install-recommends git \
+    && apt-get -y install --no-install-recommends git=1:2.39.5-0+deb12u1 \
     && rm -rf /var/lib/apt/lists/*
 
 CMD ["/action/workspace/stale_repos.py"]