Don't run trivy scan on nightly builds

.github/workflows/nightlybuild.yml

@@ -108,68 +108,7 @@ jobs:
           echo "image-name=${IMAGE_NAME}" >> "$GITHUB_OUTPUT"
           echo "image-id=$IMAGE_ID" >> "$GITHUB_OUTPUT"
 
-      - name: Download image
-        run: |
-          . venv/bin/activate
-          sudo mkdir /mnt/images
-          sudo chmod 777 /mnt/images
-          openstack image unset --property signature_verified "${{ steps.manifest.outputs.image-id }}"
-          openstack image save --file /mnt/images/${{ steps.manifest.outputs.image-name }}.qcow2 ${{ steps.manifest.outputs.image-id }}
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: install libguestfs
-        run: |
-          sudo apt -y update
-          sudo apt -y install libguestfs-tools
-
-      - name: mkdir for mount
-        run: sudo mkdir -p './${{ steps.manifest.outputs.image-name }}'
-
-      - name: mount qcow2 file
-        run: sudo guestmount -a /mnt/images/${{ steps.manifest.outputs.image-name }}.qcow2 -i --ro -o allow_other './${{ steps.manifest.outputs.image-name }}'
-
-      - name: Run Trivy vulnerability scanner
-        uses: aquasecurity/[email protected]
-        with:
-          scan-type: fs
-          scan-ref: "${{ steps.manifest.outputs.image-name }}"
-          scanners: "vuln"
-          format: sarif
-          output: "${{ steps.manifest.outputs.image-name }}.sarif"
-          # turn off secret scanning to speed things up
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload Trivy scan results to GitHub Security tab
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: "${{ steps.manifest.outputs.image-name }}.sarif"
-          category: "${{ matrix.os_version }}-${{ matrix.build }}"
-
-      - name: Fail if scan has CRITICAL vulnerabilities
-        uses: aquasecurity/[email protected]
-        with:
-          scan-type: fs
-          scan-ref: "${{ steps.manifest.outputs.image-name }}"
-          scanners: "vuln"
-          format: table
-          exit-code: '1'
-          severity: 'CRITICAL'
-          ignore-unfixed: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Delete new image if Trivy scan fails
-        if: failure() && steps.packer_build.outcome == 'success' # Runs if the Trivy scan found crit vulnerabilities or failed
-        run: |
-          . venv/bin/activate
-          echo "Deleting new image due to critical vulnerabilities or scan failure ..."
-          openstack image delete "${{ steps.manifest.outputs.image-id }}"
-
       - name: Delete old latest image
-        if: success() # Runs only if Trivy scan passed
         run: |
           . venv/bin/activate
           IMAGE_COUNT=$(openstack image list --name ${{ steps.manifest.outputs.image-name }} -f value -c ID | wc -l)