I figured out the issue. I was linting the file, but I couldn’t see the changes in my PR due that I wasn’t committing & pushing the new changes.

I have refactored my Github Action's workflow to lint the files & push them to the repository.

name: Lint files on push
on: push
jobs:

build:

runs-on: ubuntu-latest

steps:

- uses: actions/checkout@v2

- name: Installing node_modules

run: npm install

- name: Running ESLint

run: npm run lint

- name: Setting Github user.email

run: git config --global user.email "<github-email-goes-here>"

- name: Setting Github user.name

run: git config --global user.name "<github-name-goes-here>"

- name: Adding fixes for committing

run: git add .

- name: Committing ESLint fixes

run: git commit -m "fixed ESLint issues"

- name: Pushing fixes to current PR branch

run: git push

You can get your user.email & user.name by typing in your terminal git config --global user.email & git config --global user.name respectively.