Can't execute git commit when we use pipectl event register --contexts because of the git version

[ffjlabo]

What happened:

In v0.49.3, we add the new feature pipectl event register --contexts #5028
The event watcher automatically adds the commit with the trailer.

The trailer feature is introduced from git 2.32.o ref: https://github.com/git/git/blob/master/Documentation/RelNotes/2.32.0.txt#L55
git 2.33.0 ref: https://github.blog/open-source/git/highlights-from-git-2-33/

But the git version in the launcher and piped container is 2.30.6.

docker run --rm -i -t --entrypoint /bin/sh ghcr.io/pipe-cd/launcher:v0.49.3 
/ $ git --version
git version 2.30.6
/ $ cd
~ $ mkdir test
~ $ cd test/
~/test $ git init
~/test $ touch README.md
~/test $ git add README.md
~/test $ git commit -m "Initial commit" --trailer "Test: hoge"
error: unknown option `trailer'
usage: git commit [<options>] [--] <pathspec>...

/ $ git --version
git version 2.30.6
/ $ cd
~ $ mkdir test
~/test $ git init
~/test $ touch README.md
~/test $ git add README.md
~/test $ git comit -m "test" --trailer "Test: hoge"
error: unknown option `trailer'
usage: git commit [<options>] [--] <pathspec>...

What you expected to happen:

How to reproduce it:

Environment:

• piped version:
• control-plane version:
• Others:

[ffjlabo]

Thank you for investigation 🙏 @peaceiris