Fix codecov version bug in requirements-dev.txt

[takuto-san]

My Environment

• OS: macOS(M1) 15.3.1
• Python: 3.9.6
• pip: 25.0.1

Problem

While following the official installation guide, running make dev resulted in the following error:

$ make dev
...
ERROR: Could not find a version that satisfies the requirement codecov==2.1.9 (from versions: 2.1.13)
ERROR: No matching distribution found for codecov==2.1.9
...

Full log

$ make dev
python -m venv .venv
run `source .venv/bin/activate` to use virtualenv
source .venv/bin/activate && make setup
python -m pip install -Ur requirements.txt
Collecting attrs
  Using cached attrs-25.1.0-py3-none-any.whl (63 kB)
Collecting click
  Using cached click-8.1.8-py3-none-any.whl (98 kB)
Collecting fissix
  Using cached fissix-24.4.24-py3-none-any.whl (188 kB)
Collecting moreorless>=0.2.0
  Using cached moreorless-0.4.0-py2.py3-none-any.whl (9.3 kB)
Collecting volatile
  Using cached volatile-2.1.0.tar.gz (3.3 kB)
Collecting appdirs>=1.4.4
  Using cached appdirs-1.4.4-py2.py3-none-any.whl (9.6 kB)
Using legacy 'setup.py install' for volatile, since package 'wheel' is not installed.
Installing collected packages: click, appdirs, volatile, moreorless, fissix, attrs
    Running setup.py install for volatile ... done
Successfully installed appdirs-1.4.4 attrs-25.1.0 click-8.1.8 fissix-24.4.24 moreorless-0.4.0 volatile-2.1.0
WARNING: You are using pip version 21.2.4; however, version 25.0.1 is available.
You should consider upgrading via the '/Users/OCUST013/work/bowler/.venv/bin/python -m pip install --upgrade pip' command.
python -m pip install -Ur requirements-dev.txt
Collecting black==20.8b1
  Using cached black-20.8b1-py3-none-any.whl
ERROR: Could not find a version that satisfies the requirement codecov==2.1.9 (from versions: 2.1.13)
ERROR: No matching distribution found for codecov==2.1.9
WARNING: You are using pip version 21.2.4; however, version 25.0.1 is available.
You should consider upgrading via the '/Users/OCUST013/work/bowler/.venv/bin/python -m pip install --upgrade pip' command.
make[1]: *** [setup] Error 1
make: *** [dev] Error 2

Why This Problem Happened

The package codecov version 2.1.9 is no longer available.
Codecov removed all versions older than 2.1.13 from PyPI, so trying to install 2.1.9 causes an error.

https://about.codecov.io/blog/post-mortem-of-codecov-pypi-package-removal/

How I reproduce

$ make dev

Solution

Use the latest available version of the provided package.