The GH token is not required for accesing PR metadata (#22309)

.circleci/config.yml

@@ -24,7 +24,7 @@ jobs:
     parameters:
       target-branch:
         type: string
-        default: '$(curl -s -H "Authorization: token ${GITHUB_TOKEN}" $(echo https://api.github.com/repos/${CIRCLE_PULL_REQUEST:19} | sed "s/\/pull\//\/pulls\//") | jq ".base.ref" | tr -d "\042" )'
+        default: '$(curl -s $(echo https://api.github.com/repos/${CIRCLE_PULL_REQUEST:19} | sed "s/\/pull\//\/pulls\//") | jq ".base.ref" | tr -d "\042" )'
     working_directory: /mnt/ramdisk/mattermost-server
     docker:
       - image: cimg/go:1.18