Fixed brew update on CI.

Author: redboltz

.github/workflows/gha.yml

@@ -21,8 +21,9 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
     - name: Install Dependencies
-        brew update
-        brew install --force llvm
+        run: |
+          brew update
+          brew install --force llvm
 
     - name: Cache boost
       id: cache-boost