Fix deprecated action

Author: pvannierop

.github/workflows/snyk.yaml

@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Run Snyk to check for vulnerabilities
-        uses: snyk/actions/gradle-jdk17@master
+        uses: snyk/actions/gradle-8-jdk17@master
         env:
           SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
         with: