fix(ci): correct handed-corrupted SHA for anothrNick/github-tag-action

The tag job in main.yaml references
  anothrNick/github-tag-action@4ed44965e0
which does not exist upstream: the runner fails with
  Unable to resolve 4ed44965...: reference not found
  ##[error]reference not found

The first 12 chars match the real commit, the rest is fabricated - the
signature of a hand-rewritten YAML (commit 5e1827b re-added the step with a
bad SHA after 8b583cc had removed it). The correct commit for tag v1.75.0
is 4ed44965e0db8dab2b466a16da04aec3cc312fd8.

Impact: main.yaml has been red on every push to master since (runs 8197 and
8616: hadolint/test/build green, tag failed), so no release tag is created
and tag.yaml never runs -> no release build pushed to Docker Hub.

Verified against the upstream repo: tag 1.75.0 (and the v1 alias) both point
at 4ed44965e0db8dab2b466a16da04aec3cc312fd8.

.gitea/workflows/main.yaml

@@ -40,7 +40,7 @@ jobs:
       - name: Configure git auth
         run: |
           git remote set-url origin "https://x-access-token:${{ secrets.GITHUB_TOKEN }}@scm.cabillot.eu/perso/mysql-client.git"
-      - uses: anothrNick/github-tag-action@4ed44965e0db2c5b5e8b8c7c7c8c9c9c9c9c9c9c9 # v1.75.0
+      - uses: anothrNick/github-tag-action@4ed44965e0db8dab2b466a16da04aec3cc312fd8 # v1.75.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           DEFAULT_BUMP: patch