Fix the error that will encounter if 'Require pull request reviews be…

…fore merging' is already enabled. (#12)

2020/05/05 09:27:58 PUT https://api.github.com/repos/:owner/:repo/branches/:branch/protection: 422 Invalid request.
No subschema in "anyOf" matched.
0 must be greater than or equal to 1.
Not all subschemas of "allOf" matched.
For 'anyOf/1', {"dismissal_restrictions"=>{"users"=>[], "teams"=>[]}, "dismiss_stale_reviews"=>false, "require_code_owner_reviews"=>false, "required_approving_review_count"=>0} is not a null. []

main.go

@@ -181,6 +181,7 @@ func main() {
 			pullRequestReviewsEnforcementRequest.DismissalRestrictionsRequest = dismissalRestrictionsRequest
 			pullRequestReviewsEnforcementRequest.DismissStaleReviews = requiredPullRequestReviews.DismissStaleReviews
 			pullRequestReviewsEnforcementRequest.RequireCodeOwnerReviews = requiredPullRequestReviews.RequireCodeOwnerReviews
+			pullRequestReviewsEnforcementRequest.RequiredApprovingReviewCount = requiredPullRequestReviews.RequiredApprovingReviewCount
 			protectionRequest.RequiredPullRequestReviews = pullRequestReviewsEnforcementRequest
 		}