action.yml: use graphql to delete comment

action.yml

@@ -42,7 +42,7 @@ runs:
               repo: context.repo.repo,
               prnum: context.issue.number }));
 
-            var query = `query($owner:String!, $name:String!, $prnumber:Int!) { 
+            const query = `query($owner:String!, $name:String!, $prnumber:Int!) { 
               repository(owner:$owner, name:$name) { 
                 pullRequest(number:$prnumber) {
                   comments(last: 100) {
@@ -64,17 +64,16 @@ runs:
             }
             const messages = (await github.graphql(query, variables)).repository.pullRequest.comments.nodes;
 
+            const deleteQuery = `mutation {
+              deleteIssueComment(input:{$id:ID!}) {
+                clientMutationId
+              }
+            }`
+
             for (var i = 0; i < messages.length; i++) {
               if (messages[i].body.includes(watermark)) {
                 console.log(messages[i])
-                await github.request('DELETE /repos/{owner}/{repo}/issues/comments/{comment_id}', {
-                  owner: context.repo.owner,
-                  repo: context.repo.repo,
-                  comment_id: messages[i].id,
-                  headers: {
-                    'X-GitHub-Api-Version': '2022-11-28'
-                  }
-                })
+                await github.graphql(deleteQuery, {id: messages[i].id});
               }
             }