[bug] pytest collect class 'TestType' in src folder by mistake

[Snoopy1866]

action job summary

https://github.com/PyStatPower/PyStatPower/actions/runs/11006192875/attempts/1#summary-30560083064

source code

https://github.com/PyStatPower/PyStatPower/blob/00bcc18215ae876b5164f0e6562f93bfe94ea7e0/src/pystatpower/procedures/one_proportion.py#L29-L50

reference link

• Add discover_imports in conf, don't collect imported classes named Test* closes #12749` pytest-dev/pytest#12810
• Don't auto-discover tests in particular folders pytest-dev/pytest#12749