Update CI

Author: mrLSD

.github/workflows/swift.yaml

@@ -19,6 +19,8 @@ jobs:
       run: |
         brew update
         brew install llvm@18
+        # Important: add empty string
+        echo "" >> /Users/runner/.bash_profile
         echo 'export PATH="/opt/homebrew/llvm/opt/bin:$PATH"' >> /Users/runner/.bash_profile
         echo 'export LDFLAGS="-L/opt/homebrew/opt/llvm/lib"' >> /Users/runner/.bash_profile
         echo 'export CPPFLAGS="-I/opt/homebrew/opt/llvm/include"' >> /Users/runner/.bash_profile