use correct filename for premake

.github/workflows/tests.yml

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f2c21b5..6b087f4 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -52,7 +52,7 @@
         run: |
           unzip premake-5.0.0-alpha16-windows.zip
           chmod a+x premake5.exe
-          sudo mv premake5 /usr/local/bin
+          sudo mv premake5.exe /usr/local/bin
 
       - name: Build
         shell: wsl-bash {0} #mingw