add comment explaining urllib3 downgrade

Author: ankith26

.circleci/config.yml

@@ -34,6 +34,9 @@ jobs:
       - CIBW_SKIP: '*-musllinux_*'
       - CIBW_MANYLINUX_AARCH64_IMAGE: manylinux2014_base_aarch64
       - CIBW_MANYLINUX_PYPY_AARCH64_IMAGE: manylinux2014_base_aarch64
+      # urllib3 2.0.0+ needs a newer OpenSSL version than what the python 3.7 build in 
+      # the image has. So downgrade urllib3 for now, until we drop python 3.7 (after
+      # which there will be no need to downgrade)
       - CIBW_BEFORE_BUILD: pip install Sphinx"<7.2.0" urllib3"<2.0.0" && python setup.py docs
       - CIBW_TEST_COMMAND: python -m pygame.tests -v --exclude opengl,music,timing --time_out 300
       - CIBW_BUILD_VERBOSITY: 2

.github/workflows/build-manylinux.yml

@@ -61,6 +61,9 @@ jobs:
       CIBW_SKIP: '*-musllinux_*'
 
       # command that runs before every build
+      # urllib3 2.0.0+ needs a newer OpenSSL version than what the python 3.7 build in 
+      # the image has. So downgrade urllib3 for now, until we drop python 3.7 (after
+      # which there will be no need to downgrade)
       CIBW_BEFORE_BUILD: |
         pip install Sphinx"<7.2.0" urllib3"<2.0.0"
         python setup.py docs