Update pytest-timeout in requirements-dev.txt from 1.2.1 to 1.3.0

[ghost]

Dependencies.io has updated pytest-timeout (a pypi dependency in requirements-dev.txt) from "1.2.1" to "1.3.0".

1.3.0

• Make it possible to only run the timeout timer on the test function
  and not the whole fixture setup + test + teardown duration. Thanks
  Pedro Algarvio for the work!
• Use the new pytest marker API, Thanks Pedro Algarvio for the work!