add to path instead of github_path with wsl

.github/workflows/tests.yml

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 673d1db..8317f9a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -54,7 +54,7 @@
           chmod a+x premake5.exe
           mkdir -p $HOME/.local/bin
           mv premake5.exe $HOME/.local/bin
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
+          echo "$HOME/.local/bin" >> $PATH
 
       - name: Build
         shell: wsl-bash {0} #mingw