Fix typo

Author: SaoYan

.github/workflows/pull-request-comment.yml

@@ -5,7 +5,7 @@ on:
     types: [created]
 
 env:
-  HEAD_BRANDH: ${{ github.event.pull_request.head.ref }}
+  HEAD_BRANCH: ${{ github.event.pull_request.head.ref }}
   COMMENT_FILE_PATH: ${{ github.event.comment.path }}
   COMMENT_BODY: ${{ github.event.comment.body }}
   COMMENT_LINE: ${{ github.event.comment.line }}
@@ -21,7 +21,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          ref: ${{ env.HEAD_BRANDH }}
+          ref: ${{ env.HEAD_BRANCH }}
       - name: Code Review Action
         uses: codemakerai/codemaker-pull-request-action@v1.0.0
         with:
@@ -33,4 +33,4 @@ jobs:
           comment-start-line: ${{ env.COMMENT_START_LINE }}
           owner: codemakerai
           repository: codemaker-pull-request-action-example
-          branch: ${{ env.HEAD_BRANDH}}
+          branch: ${{ env.HEAD_BRANCH}}