Reference shared Grype actions by absolute URL

.gitea/workflows/build-scan-push.yml

@@ -23,11 +23,11 @@ jobs:
         run: |
           docker build --no-cache -t ${IMAGE} .
       - name: Install Grype
-        uses: self:Homelab/actions/install-grype@v1
+        uses: https://git.sysmd.uk/Homelab/actions/install-grype@v1
       - name: Scan image with Grype
         id: scan
         continue-on-error: true
-        uses: self:Homelab/actions/scan-image@v1
+        uses: https://git.sysmd.uk/Homelab/actions/scan-image@v1
         with:
           image: ${{ env.IMAGE }}
       - name: Notify Node-RED on vulnerabilities