[Chapel Merge] Bump sphinxcontrib version

Branch: refs/heads/main
Revision: 41e84194463110a28407e0b574e4ab4cf0b5e251
Author: jabraham17
Link: Bump sphinxcontrib version by jabraham17 · Pull Request #28620 · chapel-lang/chapel · GitHub
Log Message:
Bump sphinxcontrib version (#28620)

Bumps the sphinxcontrib version we use to pull in a bug fix

[Not reviewed - trivial]

Compare: Comparing 3fcba0aea2a4ab0af981160a191d0ef7dac487dc...1fd65ea523e4a03ac5e59b1c65b8b5cfe53c8e21 · chapel-lang/chapel · GitHub

Diff:
M third-party/chpl-venv/chpldoc-requirements3.txt
M util/buildRelease/gen_release
https://github.com/chapel-lang/chapel/pull/28620.diff