git: Update version from 2.30.2 to 2.30.3

Upgrade to 2.30.3 because of CVE-2022-24765:

On multi-user machines, Git users might find themselves unexpectedly in
a Git worktree, e.g. when there is a scratch space (`/scratch/`)
intended for all users and another user created a repository in
`/scratch/.git`.  Merely having a Git-aware prompt that runs `git
status` (or `git diff`) and navigating to a directory which is
supposedly not a Git worktree, or opening such a directory in an editor
or IDE such as VS Code or Atom, will potentially run commands defined by
that other user via `/scratch/.git/config`.

git.be0

@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION git-2.30.2-0
+# BEE_VERSION git-2.30.3-0
 
 SRCURL[0]="https://www.kernel.org/pub/software/scm/git/git-${PKGVERSION}.tar.xz"