Update build_cmake.yml

Author: doxygen

.github/workflows/build_cmake.yml

@@ -216,10 +216,8 @@ jobs:
 
     - name: Install xmllint (MacOS)
       run: |
-         #brew install --force --overwrite [email protected] # temp hack
-         #brew install --force --overwrite [email protected] # temp hack
-         brew install --force --overwrite [email protected] # temp hack
-         brew update
+         brew update || true
+         brew upgrade || true         
          brew install libxml2
       if: startsWith(matrix.config.os,'macos-')