Do not wait after last try of a test

tests/tester.py

@@ -302,6 +302,8 @@ class Tester():
             # Run test
             count = 0
             while count < 3:
+                if count > 0:
+                    time.sleep(5 * count * count)
                 count += 1
                 print("Attempt: %s" % str(count))
                 p = subprocess.run(
@@ -314,7 +316,6 @@ class Tester():
                 print(out)
                 if p.returncode in (0, 2, 3):
                     break
-                time.sleep(5 * count * count)
             out_of_support = out_of_support or "out of support" in out
             if p.returncode == 0:
                 status = "\033[92msuccess\033[0m"