Fix #13: Eliminate workflow warnings by updating github action to consume node 16

[mithunshanbhag]

Relevant details:

• 13

• https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/

[ninallam]

@radhikajain99 Can you please review this change and merge?