ci(changelog): Skip changelog with label instead of text

.github/actions/changelog/index.js

@@ -23,7 +23,7 @@ module.exports = async ({github, context, core}) => {
   \`\`\`md
   - ${title}. (${PR_LINK})
   \`\`\`
-  If none of the above apply, you can opt out by adding _#skip-changelog_ to the PR description.
+  If none of the above apply, you can opt out by adding the _skip-changelog_ label to the PR.
   `;
   }
 
@@ -51,8 +51,8 @@ module.exports = async ({github, context, core}) => {
   }
 
   async function checkChangelog(pr) {
-    if ((pr.body || '').includes('#skip-changelog')) {
-      core.info('#skip-changelog is set. Skipping the checks.');
+    const hasSkipLabel = (pr.labels || []).some(label => label.name === 'skip-changelog');
+    if (hasSkipLabel) {
       return;
     }
 

.github/workflows/changelog.yml

@@ -1,7 +1,7 @@
 name: "Changelog"
 on:
   pull_request:
-    types: [opened, synchronize, reopened, edited, ready_for_review]
+    types: [opened, synchronize, reopened, edited, ready_for_review, labeled, unlabeled]
   merge_group:
 
 jobs: