feat: update package details

[LakiG]

Fixes #27

• Update the package name to openapi-test-runner

The repository will be uploaded to PyPI.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (cee9ac6) 99.73% compared to head (63cc472) 99.73%.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev      #61   +/-   ##
=======================================
  Coverage   99.73%   99.73%           
=======================================
  Files          12       12           
  Lines         754      754           
=======================================
  Hits          752      752           
  Misses          2        2           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[uniqueg]

You can merge these changes into #60, I think. No need for a separate PR, as far as I can see. But of course replace OpenAPI with API and see the comments about where the entry point should be (I think it should stay here)

[uniqueg]

LGTM :)