github: Get --version working for Windows build

Make sure we can get the version into the binary for '--version' and
does not show up as "unknown-version" by installing git.

Additionally make sure to configure autocrlf to avoid -dirty suffix.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>

.github/workflows/build.yml

@@ -123,6 +123,7 @@ jobs:
           msystem: MINGW64
           install: >
             base-devel
+            git
             mingw-w64-x86_64-gcc
             mingw-w64-x86_64-make
             mingw-w64-x86_64-pkg-config
@@ -130,7 +131,9 @@ jobs:
             mingw-w64-x86_64-libusb
 
       - name: Build
-        run: make
+        run: |
+          git config --global core.autocrlf true
+          make
         shell: msys2 {0}
 
       - name: Run tests