Added a global timeout for the test suite. (#11263)

* Added a global timeout.

* Fixed a typo.

Author: gabrieldemarmiesse

pytest.ini

@@ -7,6 +7,10 @@ addopts=-v
 # Do not run tests in the build folder
 norecursedirs= build
 
+# Running all tests should take less than 12 minutes.
+# Otherwise, something went wrong.
+timeout = 720
+
 # PEP-8 The following are ignored:
 # E501 line too long (82 > 79 characters)
 # E402 module level import not at top of file - temporary measure to continue adding ros python packaged in sys.path