Merge pull request #463 from learningequality/dependabot/pip/pycountry-23.12.11

Bump pycountry from 22.3.5 to 23.12.11

Author: rtibbles

requirements_test.txt

@@ -1,5 +1,5 @@
 requests-cache==1.1.1
 pytest==7.3.1
-pycountry==22.3.5
+pycountry==23.12.11
 pytest-env==0.8.1
 mock==5.1.0