Set DYLD_LIBRARY_PATH environment variable via $GITHUB_ENV, so it's e…

…xported to other steps.

.github/workflows/Pipeline.yml

@@ -31,6 +31,7 @@ jobs:
         echo $(brew --prefix llvm@15)
         export DYLD_LIBRARY_PATH=$(brew --prefix llvm@15)/lib
         echo -$DYLD_LIBRARY_PATH-
+        echo "DYLD_LIBRARY_PATH=$(brew --prefix llvm@15)/lib" >> $GITHUB_ENV
         echo "----"
         ls $(brew --prefix llvm@15)/lib
       mingw64_before_script: |