fixup! fixup! build-git-installers: publish gpg public key

The `akv-secret` Action must be checked out before it can be used.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/build-git-installers.yml

@@ -842,6 +842,9 @@ jobs:
           tenant-id: ${{ secrets.AZURE_TENANT_ID }}
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
+      - name: Check out repository (for akv-secret Action)
+        uses: actions/checkout@v4
+
       - name: Download Linux GPG public key signature file
         uses: ./.github/actions/akv-secret
         with: