chore(.github/ISSUE_TEMPLATE/bug.yaml): fix broken bullet points

[locnnil]

From my experiments on my repo:
https://github.com/locnnil/ci-exp/issues/new/choose

Bullets works using * (along with indentation) instead of -

• Have you followed the guidelines for contributing?
• Have you signed the CLA?
• Have you successfully run tox run -m lint?
• Have you successfully run tox run -e test-py310? (supported versions: py39, py310, py311, py312)

---

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.69%. Comparing base (654871d) to head (9d41b6f).
Report is 671 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (654871d) and HEAD (9d41b6f). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (654871d)	HEAD (9d41b6f)
	2	1

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5201      +/-   ##
==========================================
- Coverage   94.88%   89.69%   -5.19%     
==========================================
  Files         658      341     -317     
  Lines       55189    22649   -32540     
==========================================
- Hits        52364    20315   -32049     
+ Misses       2825     2334     -491     

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[mr-cal]

Thanks!