Refactor Homebrew reset steps in build.yml

Updated Homebrew reset process in CI workflow.

Author: zenfty

.github/workflows/build.yml

@@ -34,22 +34,16 @@ jobs:
       - name: Use Xcode 15
         run: sudo xcode-select -switch /Applications/Xcode_15.2.app/Contents/Developer
 
-      - name: Reset Homebrew to pristine state
+      - name: Pristine Homebrew on GH runner
         run: |
-          # remove unnecessary taps
-          brew untap homebrew/cask 2>/dev/null || true
-          brew untap homebrew/core 2>/dev/null || true
+          # ensure core/cask exist
+          brew tap homebrew/core || true
+          brew tap homebrew/cask || true
       
-          # stash and clean any local modifications in core and cask
-          git -C "$(brew --repo homebrew/core)" stash -u || true
-          git -C "$(brew --repo homebrew/core)" clean -d -f || true
-          git -C "$(brew --repo homebrew/cask)" stash -u || true
-          git -C "$(brew --repo homebrew/cask)" clean -d -f || true
-      
-          # fully reset Homebrew metadata
+          # fully reset all taps
           brew update-reset
 
-          # cleanup old builds, broken symlinks, cache
+          # cleanup old builds, symlinks, cache
           brew cleanup -s
           rm -rf "$(brew --cache)"/*