add rundep git to devel/git-annex

git-annex is absolutely useless without git and most commands will
fail because git is not available, let add git as a run depend?

Index: Makefile
===================================================================
RCS file: /home/reposync/ports/devel/git-annex/Makefile,v
retrieving revision 1.3
diff -u -p -r1.3 Makefile
--- Makefile 10 Mar 2021 01:34:06 -0000 1.3
+++ Makefile 22 Sep 2021 16:17:10 -0000
@@ -4,6 +4,7 @@ COMMENT = use git to manage files withou

CATEGORIES = devel
HOMEPAGE = https://git-annex.branchable.com/
+REVISION = 0

# Many licenses listed in COPYRIGHT with AGPL-3+ being the most
# restrictive. All permit redistribution.
@@ -16,7 +17,8 @@ LIB_DEPENDS = converters/libiconv \
devel/libffi \
devel/libmagic

-RUN_DEPENDS = net/rsync
+RUN_DEPENDS = devel/git \
+ net/rsync

BUILD_DEPENDS = devel/git