Read localaction's from container (#719)

Fix localaction tests (missing checkout)

Co-authored-by: Ryan (hackercat) <me@hackerc.at>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/runner/testdata/uses-composite/push.yml

@@ -5,6 +5,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
+    - uses: actions/checkout@v2
     - uses: ./uses-composite/composite_action
       id: composite
       with: