chore: update release-notes-preview

Author: Ramon Rüttimann

.github/workflows/release-notes.yaml

@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@v2
     - run: |
         git fetch --prune --unshallow --tags
-    - uses: snyk/release-notes-preview@v1.4.0
+    - uses: snyk/release-notes-preview@v1.6.2
       with:
         releaseBranch: main
       env: