git: Add option to force merge and skip CI check

bin/git-close-pull-request

@@ -69,6 +69,11 @@ class ClosesPullRequests
 
     private function confirmCiStatusIsPassing(): void
     {
+        if ($this->isForce()) {
+            echo 'Forced. Skipping ci-status check...' . PHP_EOL;
+            return;
+        }
+
         echo 'Confirming ci-status on PR is green...' . PHP_EOL;
 
         // TODO: Check for failures, or skip if there is no CI.
@@ -212,6 +217,16 @@ class ClosesPullRequests
         return current($values);
     }
 
+    private function hasArg(string $shortOpts, array $longOpts = []): bool
+    {
+        return !empty(getopt($shortOpts, $longOpts));
+    }
+
+    private function isForce(): bool
+    {
+        return $this->hasArg('f::', ['force::']);
+    }
+
     /**
      * Run the command.
      *