Handle PR bodies correctly (#11165)

.github/workflows/operator-ui-cd.yml

@@ -39,7 +39,7 @@ jobs:
           url: ${{ secrets.AWS_INFRA_RELENG_TOKEN_ISSUER_LAMBDA_URL }}
 
       - name: Open PR
-        uses: peter-evans/create-pull-request@38e0b6e68b4c852a5500a94740f0e535e0d7ba54 # v4.2.4
+        uses: peter-evans/create-pull-request@153407881ec5c347639a548ade7d8ad1d6740e38 # v5.0.2
         with:
           title: Update Operator UI from ${{ steps.update.outputs.current_tag }} to ${{ steps.update.outputs.latest_tag }}
           token: ${{ steps.get-gh-token.outputs.access-token }}

operator_ui/check.sh

@@ -26,12 +26,13 @@ else
   echo "$latest_tag" >"$tag_file"
   echo "Tag updated $current_tag -> $latest_tag"
   if [ "$CI" ]; then
-    echo "current_tag=$current_tag" >> $GITHUB_OUTPUT
-    echo "latest_tag=$latest_tag" >> $GITHUB_OUTPUT
-    # See https://github.com/peter-evans/create-pull-request/blob/main/docs/examples.md#setting-the-pull-request-body-from-a-file
-    body="${body//'%'/'%25'}"
-    body="${body//$'\n'/'%0A'}"
-    body="${body//$'\r'/'%0D'}"
-    echo "body=$body" >> $GITHUB_OUTPUT
+    echo "current_tag=$current_tag" >>$GITHUB_OUTPUT
+    echo "latest_tag=$latest_tag" >>$GITHUB_OUTPUT
+
+    # See https://github.com/orgs/community/discussions/26288#discussioncomment-3876281
+    delimiter="$(openssl rand -hex 8)"
+    echo "body<<${delimiter}" >>"${GITHUB_OUTPUT}"
+    echo "$body" >>"${GITHUB_OUTPUT}"
+    echo "${delimiter}" >>"${GITHUB_OUTPUT}"
   fi
 fi