feat: add node16 support (#922)

* feat: add node16 support

Signed-off-by: hackercat <me@hackerc.at>

* feat: bump images to node16

Signed-off-by: hackercat <me@hackerc.at>

* lint(editorconfig): ignore *.md due to mixed style

Signed-off-by: hackercat <me@hackerc.at>

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/runner/testdata/local-action-js/push.yml

@@ -2,10 +2,18 @@ name: local-action-node12
 on: push
 
 jobs:
-  test:
+  test-node12:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
     - uses: ./actions/node12
       with:
         who-to-greet: 'Mona the Octocat'
+
+  test-node16:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ./actions/node16
+      with:
+        who-to-greet: 'Mona the Octocat'