[Github] Fix typo in PR code formatting job

The recent change to split the PR code formatting job accidentally
misspelled the repository field when specifying the repository to fetch
the code formatting utils from. This patch fixes the spelling so that
the job does not throw a warning and clones the tools from the specified
repository.

Author: boomanaiden154

.github/workflows/pr-code-format.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Fetch code formatting utils
         uses: actions/checkout@v4
         with:
-          reository: ${{ github.repository }}
+          repository: ${{ github.repository }}
           ref: ${{ github.base_ref }}
           sparse-checkout: |
             llvm/utils/git/requirements_formatting.txt