This stops us installing our locally patched git package and shifts to
installing git from debian bullseye. This should pull in git
2.30.2-1+deb11u1 which includes the same patches we made but in the
upstream package.
Reviewers should double check this correct up to date version of git is
installed in the image build.
Note we don't do a straight revert because we need to explicitly install
git to upgrade git on the base image as it has not updated yet.
Change-Id: I34b170f59bc648a8917176ded66ffaea9425c4b9
6de5a76aaf