Fix deprecated Snyk scan action

Author: pvannierop

.github/workflows/snyk.yaml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - 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: