Fix wrong marker for unittest2 in dev requirements

Author: molinav

CHANGELOG.md

@@ -10,6 +10,7 @@ since version 1.3.0.
 ### Fixed
 - Enforce dependency `numpy >= 1.21` for Python >= 3.7 due to `numpy`
   vulnerability CVE-2021-33430.
+- Fix wrong marker for `unittest2` in development requirements.
 
 ## [1.3.1] - 2022-01-22
 

packages/basemap/requirements-dev.txt

@@ -10,7 +10,7 @@ astroid >= 2.4, < 3.0; python_version >= "3.5"
 pylint >= 1.9, < 2.0; python_version == "2.7"
 pylint >= 2.6, < 3.0; python_version >= "3.5"
 
-unittest2; python_version >= "3.10"
+unittest2; python_version < "3.10"
 
 pytest >= 3.2, < 3.3; python_version == "2.6"
 pytest >= 3.2, < 5.0; python_version == "2.7"