Extend cache timeout to schedule runner also, block running a schedule

of an inventory update or a project update if its schedule places
it within that time also

awx/main/models/projects.py

@@ -298,6 +298,14 @@ class Project(UnifiedJobTemplate, ProjectOptions):
     def create_project_update(self, **kwargs):
         return self.create_unified_job(**kwargs)
 
+    @property
+    def cache_timeout_blocked(self):
+        if not self.last_job_run:
+            return False
+        if (self.last_job_run + datetime.timedelta(seconds=self.update_cache_timeout)) > now():
+            return True
+        return False
+    
     @property
     def needs_update_on_launch(self):
         if self.active and self.scm_type and self.scm_update_on_launch: