@ohsayan,

If the workflow is triggered by push event, you can use the following properties to get the email and name of the pusher from the github context of the workflow run.

github.event.pusher.email
github.event.pusher.name

For example:

on: push
jobs:

job1:

runs-on: ubuntu-latest

steps:

- name: View the information of the pusher

run: |

echo "The name of the pusher: ${{ github.event.pusher.name }}"

echo "The email of the pusher: ${{ github.event.pusher.email }}"
  - name: View the github context
    run: echo "$GITHUB_CONTEXT"
    env:
      GITHUB_CONTEXT: ${{ toJson(github) }}

@dawidd6’s link points to the legacy documentation, the new link is:
https://docs.github.com/en/free-pro-team@latest/developers/webhooks-and-events/webhook-events-and-payloads#push