openssf scorecard for security improvements (current score 5.4)

[nitrocode]

Improve security by adding openssf scorecard which gives an objective score to track

https://securityscorecards.dev/viewer/?uri=github.com/reviewdog/action-tfsec

https://scorecard.dev/

https://app.stepsecurity.io/securerepo?repo=https://github.com/reviewdog/action-tfsec