fix typo

Signed-off-by: Markus Blaschke <mblaschke82@gmail.com>

Author: mblaschke

metrics_github_workflows.go

@@ -104,7 +104,7 @@ func (m *MetricsCollectorGithubWorkflows) Setup(collector *collector.Collector)
 			"workflow",
 			"workflowUrl",
 			"workflowRun",
-			"workflowRunRul",
+			"workflowRunUrl",
 			"event",
 			"branch",
 			"status",
@@ -144,7 +144,7 @@ func (m *MetricsCollectorGithubWorkflows) Setup(collector *collector.Collector)
 			"workflow",
 			"workflowUrl",
 			"workflowRun",
-			"workflowRunRul",
+			"workflowRunUrl",
 			"event",
 			"branch",
 			"conclusion",
@@ -198,7 +198,7 @@ func (m *MetricsCollectorGithubWorkflows) Setup(collector *collector.Collector)
 			"workflow",
 			"workflowUrl",
 			"workflowRun",
-			"workflowRunRul",
+			"workflowRunUrl",
 			"branch",
 			"actorLogin",
 			"actorType",