guess I'll try to brute force my way

.github/workflows/build_linux64.yml

@@ -7,6 +7,31 @@ on:
     branches: [ experiments-with-ghactions ]
 
 jobs:
+  wtfisthis:
+    name: Path lister
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: "3.7"
+
+      - uses: actions/checkout@v1
+
+      - name: Fetch action
+        id: pl
+        uses: Rishabh510/Path-lister-action@master
+        with:
+          path: "."
+          type: "*"
+
+      - name: Output results
+        run: |
+          echo "Found ${{ steps.pl.outputs.path_count }} file(s) with this extension:"
+          for i in ${{ steps.pl.outputs.paths }}; do
+          echo $i
+          done
+    
   build:
     runs-on: ubuntu-latest
     steps: