bump action from Node12 to Node16 (#13)

* bump action from Node12 to Node16

Node 12 has an end of life on April 30, 2022.

This PR updates the default runtime to [node16](https://github.blog/changelog/2021-12-10-github-actions-github-hosted-runners-now-run-node-js-16-by-default/), rather then node12. 

This is supported on all Actions Runners v2.285.0 or later.

Signed-off-by: Enes <ahmedenesturan@gmail.com>

* bump action from Node12 to Node16

Node 12 has an end of life on April 30, 2022.

This PR updates the default runtime to [node16](https://github.blog/changelog/2021-12-10-github-actions-github-hosted-runners-now-run-node-js-16-by-default/), rather then node12.

This is supported on all Actions Runners v2.285.0 or later.

Signed-off-by: Enes <ahmedenesturan@gmail.com>

---------

Signed-off-by: Enes <ahmedenesturan@gmail.com>

Author: devenes

action.yml

@@ -16,5 +16,5 @@ inputs:
     description: 'secrets.GITHUB_TOKEN'
     required: true
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'lib/main.js'