Fix case sensitivity for Ninja installation command

Author: Guila767

.github/workflows/c-cpp.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Install ninja (Windows)
         if: runner.os == 'Windows'
-        run: choco install -y ninja
+        run: choco install -y Ninja
 
       - name: Configure (Windows)
         if: runner.os == 'Windows'