add todo to gha path ignore

Author: brachy84

.github/workflows/test_build.yaml

@@ -12,6 +12,7 @@ on:
       - '.github/**' # Release GHA file, please change this when you change the file name
       - 'LICENSE'
       - 'README.md'
+      - 'TODO.md'
       - '.editorconfig'
   workflow_dispatch:
 
@@ -60,4 +61,4 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: ModularUI-${{ steps.gradle_properties.outputs.modVersion }}-${{ github.run_number }}
-          path: build/libs
+          path: build/libs