feat: fuzz testing PythonRequirementsParser

[raffifu]

fixes #3330

Added fuzz testing for PythonRequirementsParser. Proto is based on requirements.txt specification. Every point except environment markers is already added to proto

I have tested on my local machine, here's the output:

[codecov-commenter]

Codecov Report

Merging #3397 (05d5ebb) into main (2847879) will increase coverage by 4.14%.
Report is 18 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3397      +/-   ##
==========================================
+ Coverage   75.83%   79.98%   +4.14%     
==========================================
  Files         750      758       +8     
  Lines       11534    11596      +62     
  Branches     1560     1568       +8     
==========================================
+ Hits         8747     9275     +528     
+ Misses       2435     1902     -533     
- Partials      352      419      +67     

Flag	Coverage Δ
longtests	74.81% <ø> (-1.03%)	⬇️
win-longtests	77.97% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 38 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[terriko]

This looks great! I've got a couple of nitpicks about the SPDX licensing lines: updating the year in the .proto file and I've suggested a pair of SPDX license strings for the non-autogenerated file. I just put in our default Intel one, but if you want to use your own name in place of Intel that works too -- the important part is that the license must be compatible.

Other than that, I think this looks ready to merge, and hopefully I'll get a chance to run it for a longer go in preparation for our next release!

[raffifu]

Thank you for the review, i've commited the suggestion into new commit

[terriko]

Looks good, thank you! I'm marking it as approved now but the tests need to re-run before it'll merge.

[terriko]

Getting this merged today! thank you again, congratulations on your first merged commit with us, and happy hacktoberfest!