SquishTests: Improve toggling filter names in "Issues" view

- Explicitly set a shorter timeout. After the menu appears, it
  should not take that long until the item is there, too.

- Warn when an item can't be found. This should not go unnoticed,
  because it either means that the GUI changed or that there's a
  bug in the test. Both require a fix.

Change-Id: Id7faa2b91926c392bd0d894214f498d8ba8edaa1
Reviewed-by: Jukka Nokso <jukka.nokso@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

tests/system/shared/build_utils.py

@@ -9,7 +9,7 @@ def toggleIssuesFilter(filterName, checked):
         filterMenu = waitForObject("{type='QMenu' unnamed='1' visible='1'}")
         waitFor("filterMenu.visible", 1000)
 
-        filterCategory = waitForObjectItem(filterMenu, filterName)
+        filterCategory = waitForObjectItem(filterMenu, filterName, 1000)
         waitFor("filterCategory.visible", 2000)
         if filterCategory.checked == checked:
             test.log("Filter '%s' has already check state %s - not toggling."
@@ -20,8 +20,8 @@ def toggleIssuesFilter(filterName, checked):
             test.log("Filter '%s' check state changed to %s." % (filterName, checked))
     except:
         t,v = sys.exc_info()[:2]
-        test.log("Exception while toggling filter '%s'" % filterName,
-                 "%s: %s" % (t.__name__, str(v)))
+        test.warning("Exception while toggling filter '%s'" % filterName,
+                     "%s: %s" % (t.__name__, str(v)))
 
 
 def getBuildIssues(ignoreCodeModel=True):