last tweak to the CI build system

at least till clang is fixed for windows targets

Signed-off-by: Zach Bacon <zachbacon@vba-m.com>

.github/workflows/msys2-build.yml

@@ -12,13 +12,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-        run: |
-          git config --global core.autocrlf true
-        
-
       - uses: msys2/setup-msys2@v2
         with:
           msystem: CLANG64
+          update: true
           install: >-
             mingw-w64-clang-x86_64-toolchain
             mingw-w64-clang-x86_64-pkg-config