fetch tags when fetch-depth > 0. fix #1781

[andreineculau]

fixes #1781

[TingluoHuang]

this won't work.
the bug in git cause the --tags get ignored when we pass any refspec.

19:38:51.501221 git.c:476               trace: built-in: git fetch --prune --no-recurse-submodules --depth=1 --tags origin +dafa907d050b7aca612cb1fc3262cbe1157a41d4:refs/remotes/origin/main
From https://github.com/TingluoHuang/repo-3208316
 + 2e53bff...dafa907 dafa907d050b7aca612cb1fc3262cbe1157a41d4 -> origin/main  (forced update)

vs older git version

19:45:56.613886 git.c:479               trace: built-in: git fetch --prune --no-recurse-submodules --depth=1 --tags origin +dafa907d050b7aca612cb1fc3262cbe1157a41d4:refs/remotes/origin/main
From https://github.com/TingluoHuang/repo-3208316
 + 5b6b8cc...dafa907 dafa907d0[50](https://github.com/TingluoHuang/repo-3208316/actions/runs/13315815917/job/37189415774#step:4:51)b7aca612cb1fc3262cbe1157a41d4 -> origin/main  (forced update)
 * [new tag]         v13315501148                             -> v13315501148
 * [new tag]         v13315557600                             -> v13315557600
 * [new tag]         v13315584914                             -> v13315584914
 * [new tag]         v13315601791                             -> v13315601791
 * [new tag]         v133156378[52](https://github.com/TingluoHuang/repo-3208316/actions/runs/13315815917/job/37189415774#step:4:53)                             -> v13315637852
 * [new tag]         v13315718561                             -> v13315718561
 * [new tag]         v13315732428                             -> v13315732428
 * [new tag]         v13315782509                             -> v13315782509