Merge pull request #4676 from YosysHQ/micko/fix_macos_ci

CI: make CI continue even if brew objects

Author: mmicko

.github/actions/setup-build-env/action.yml

@@ -15,7 +15,7 @@ runs:
       shell: bash
       run: |
         HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew update
-        HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install bison flex gawk libffi pkg-config bash autoconf llvm lld
+        HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install bison flex gawk libffi pkg-config bash autoconf llvm lld || true
 
     - name: Linux runtime environment
       if: runner.os == 'Linux'