Update build-kernel-a13-5.15.yml

.github/workflows/build-kernel-a13-5.15.yml

@@ -123,7 +123,7 @@ jobs:
           
           # Initialize and sync kernel source
           echo "Initializing and syncing kernel source..."
-          FORMATTED_BRANCH="${{ matrix.android_version }}-${{ matrix.kernel_version }}-${{ matrix.os_patch_level: }}"
+          FORMATTED_BRANCH="${{ matrix.android_version }}-${{ matrix.kernel_version }}-${{ matrix.os_patch_level }}"
           $REPO init --depth=1 --u https://android.googlesource.com/kernel/manifest -b common-${FORMATTED_BRANCH} --repo-rev=v2.16
           
           REMOTE_BRANCH=$(git ls-remote https://android.googlesource.com/kernel/common ${FORMATTED_BRANCH})