chore: Update Snyk Action version

Author: dmaccormack

.github/workflows/ci.yml

@@ -80,7 +80,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Run Snyk to check ${{ github.ref }} for vulnerabilities
-        uses: snyk/actions/maven-3-jdk-11@master
+        uses: snyk/actions/maven-3-jdk-17@master
         env:
           SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}