ci: add job to cancel previous runs

[ersachin3112]

This PR contains a:

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

Motivation / Use-Case

add job to cancel previous runs

Breaking Changes

No

Additional Info

No

[codecov[bot]]

Codecov Report

Merging #147 (a913f05) into master (b90be51) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #147   +/-   ##
=======================================
  Coverage   92.03%   92.03%           
=======================================
  Files           3        3           
  Lines         226      226           
  Branches       86       86           
=======================================
  Hits          208      208           
  Misses         12       12           
  Partials        6        6           

Impacted Files	Coverage Δ
src/index.js	100.00% <ø> (ø)

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