git: upgrade 2.45.1 -> 2.45.2

git: upgrade 2.45.1 -> 2.45.2

Changeglog:
============
- send-email: drop FakeTerm hack
- send-email: avoid creating more than one Term::ReadLine object
- ci: drop mention of BREW_INSTALL_PACKAGES variable
- ci: avoid bare "gcc" for osx-gcc job
- ci: stop installing "gcc-13" for osx-gcc
- hook: plug a new memory leak
- init: use the correct path of the templates directory again
- Revert "core.hooksPath: add some protection while cloning"
- tests: verify that `clone -c core.hooksPath=/dev/null` works again
- clone: drop the protections where hooks aren't run
- Revert "Add a helper function to compare file contents"
- Revert "fsck: warn about symlink pointing inside a gitdir"

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>