Feat/workflows (#49) * Update auto_assignee.yml update version from @1.2.7 to @master * Update automerge.yml * Update changelog.yml * Update readme.yml update version from @1.2.7 to @master * Update tf-checks.yml update version from @1.2.7 to @master * Update tflint.yml update version from @1.2.7 to @master * Update tfsec.yml update version from @1.2.7 to @master