chore: use LTS node version in lint job

[ersachin3112]

This PR contains a:

• [ ] bugfix
• [ ] new feature
• [ ] code refactor
• [ ] test update
• [ ] typo fix
• [x] metadata update

Motivation / Use-Case

Use the Node.js LTS version syntax so we don't have to manually update node-version in future.

Breaking Changes

No

Additional Info

No

[codecov[bot]]

Codecov Report

Base: 97.11% // Head: 97.11% // No change to project coverage :thumbsup:

Coverage data is based on head (1e1b43d) compared to base (15e3e35). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #547 +/- ## ======================================= Coverage 97.11% 97.11% ======================================= Files 3 3 Lines 312 312 Branches 114 114 ======================================= Hits 303 303 Misses 9 9 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=webpack-contrib). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=webpack-contrib)

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