chore: add DCO to release-please

Signed-off-by: Todd Baert <todd.baert@dynatrace.com>

Author: toddbaert

.github/workflows/release-please.yml

@@ -10,10 +10,11 @@ jobs:
 
     # Release-please creates a PR that tracks all changes
     steps:
-      - uses: google-github-actions/release-please-action@e4dc86ba9405554aeba3c6bb2d169500e7d3b4ee # v4
+      - uses: googleapis/release-please-action@v4
         id: release
         with:
           token: ${{secrets.RELEASE_PLEASE_ACTION_TOKEN}}
+          signoff: "OpenFeature Bot <109696520+openfeaturebot@users.noreply.github.com>"
 
       # The logic below handles the maven publication:
       - name: Checkout Repository

release-please-config.json

@@ -1,6 +1,6 @@
 {
   "bootstrap-sha": "5b1c87955b5d66b993f943161b72b30c398c1537",
-  "plugins": ["maven-workspace"],
+  "signoff": "OpenFeature Bot <109696520+openfeaturebot@users.noreply.github.com>",
   "separate-pull-requests": true,
   "packages": {
     "providers/flagd": {