Replace pyinvoke with Makefile

[mkmkme]

pyinvoke has several serious issues. First and foremost, it is very unsafe to pass any string arguments to run(), because it does not verify the string arguments at all. Given this function in tasks.py:

@task
def hello(c, name="user"):
    run(f"echo {name}")

you can get quite interesting results:

❯ invoke hello
user
❯ invoke hello --name="; date"

Sat Oct 18 11:41:56 CEST 2025

This is an issue number 2 in pyinvoke and I can't see it closed in any foreseeable future:
pyinvoke/invoke#2

Additionally, running linters from invoke.run() disables any colors from the linters which makes it less comfortable to use and caused us to force colors in some targets:
6111059

Even with that change, I have to pass additional -c any time I would like to run linters with colored output.

Considering these main issues, I have considered different alternatives to pyinvoke with one of them being tox:
#106

However, tox seems to be somewhat of an overkill for such a simple task, and also packaging was done via invoke as well. Therefore I've decided to pick make as an alternative.

This commit replaces tasks.py with a corresponding Makefile, removes invoke from dev dependencies (additionally removing click that was mentioned there explicitly for some reason) and replaces all the calls for invoke with calls for make.

This PR closes #62

Pull Request check-list

• Do tests and lints pass with this change?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• Is there an example added to the examples folder (if applicable)?

Description of change

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.27%. Comparing base (b0d9b12) to head (ad10a3b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #233   +/-   ##
=======================================
  Coverage   76.27%   76.27%           
=======================================
  Files         129      129           
  Lines       33904    33904           
=======================================
  Hits        25860    25860           
  Misses       8044     8044           

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[bogdanp05]

This looks way cleaner than before, thanks!