trivy cache not needed anymore

.gitea/workflows/vulnscan.yaml

@@ -17,12 +17,6 @@ jobs:
       - name: Pull docker image
         run: docker pull docker.asperti.com/paspo/ftps:latest
 
-      - uses: actions/cache/restore@v4
-        with:
-          path: |
-            /root/.cache/trivy
-          key: trivy-db
-
       - name: Setup trivy
         run: |
           wget -O /tmp/trivy.deb https://github.com/aquasecurity/trivy/releases/download/v0.57.1/trivy_0.57.1_Linux-64bit.deb
@@ -33,13 +27,6 @@ jobs:
         run: |
           trivy --server ${{ secrets.TRIVY_SERVER }} --token ${{ secrets.TRIVY_SERVER }} image --format json docker.asperti.com/paspo/ftps:latest > trivy-results.json
 
-      - uses: actions/cache/save@v4
-        if: always()  # salva in cache anche se trova vulnerabilità
-        with:
-          path: |
-            /root/.cache/trivy
-          key: trivy-db
-
       # if some vulnerability is found, we fail
       - name: check output
         id: vulncount