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/actions/node16/action.yml

@@ -0,0 +1,13 @@
+name: 'Hello World'
+description: 'Greet someone and record the time'
+inputs:
+  who-to-greet:  # id of input
+    description: 'Who to greet'
+    required: true
+    default: 'World'
+outputs:
+  time: # id of output
+    description: 'The time we greeted you'
+runs:
+  using: 'node16'
+  main: 'dist/index.js'