[CI] update DNS on experimental release (#1298)

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/1298
Co-authored-by: oliverpool <git@olivier.pfad.fr>
Co-committed-by: oliverpool <git@olivier.pfad.fr>
(cherry picked from commit 2aebc5ab4d)
(cherry picked from commit 8d66b6e7bc)
(cherry picked from commit c782935f1b)
(cherry picked from commit 51e071da73)
(cherry picked from commit 81dbc87e16)
(cherry picked from commit 7a98204743)

.forgejo/workflows/publish-release.yml

@@ -58,3 +58,22 @@ jobs:
           gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
           gpg-passphrase: ${{ secrets.GPG_PASSPHRASE }}
           verbose: ${{ secrets.VERBOSE }}
+
+
+      - name: set up go for the DNS update below
+        uses: https://code.forgejo.org/actions/setup-go@v4
+        if: secrets.ROLE == 'forgejo-experimental'
+        with:
+          go-version: ">=1.21"
+          check-latest: true
+      - name: update the _release.experimental DNS record
+        if: secrets.ROLE == 'forgejo-experimental'
+        uses: https://code.forgejo.org/actions/ovh-dns-update@v1
+        with:
+          subdomain: _release.experimental
+          domain: forgejo.com # there is a CNAME from .org to .com (for security reasons)
+          record-id: 5283602601
+          value: v=${{ github.ref_name }}
+          ovh-app-key: ${{ secrets.OVH_APP_KEY }}
+          ovh-app-secret: ${{ secrets.OVH_APP_SECRET }}
+          ovh-consumer-key: ${{ secrets.OVH_CON_KEY }}