Maintenance: update action to use Node v16 by default (node12 is being deprecated)

[dbelyaev]

Hello, when running this action we are getting message on deprecated node being used in the action which should be update to the Node 16.

The following actions uses node12 which is deprecated and will be forced to run on node16: banyan/auto-label@45a96386f4cac601434ed0f34db11c8df2fcac86. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Is it possible to update the action to run on with the Node v16?