git-annex: write custom test
git-annex: write custom test

The automatic test-suite, whilst being very thorough, routinely times out
on our CI system and causes issues in other builds consequently. This commit
adds a custom test instead, which shouldn't time out.

Closes #48787.

Closes #48808.

Signed-off-by: Dominyk Tiller <53e438f55903875d07efdd98a8aaf887e7208dd3@gmail.com>

filcab/homebrew,filcab/homebrew,filcab/homebrew,filcab/homebrew