[sc-29929] invalid multi oas config

[elic-eon]

🤔 Why?

specs:
  - base_url: <url>
    openapi_json_url: <url>
  - base_url: <url>
    openapi_json_url: <url>

output:
  file:
    directory: <path>

didn't not pass the config validation

🤓 What?

Fix OpenAPIRunConfig validation function

🧪 Tested?

Verified locally

☑️ Checks

• My PR contains actual code changes, and I have updated the version number in pyproject.toml.

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
13448	12038	90%	85%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
metaphor/openapi/config.py	95%	🟢
TOTAL	95%	🟢

updated for commit: a5d2aa7 by action🐍

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.51%. Comparing base (81572b4) to head (a5d2aa7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1046   +/-   ##
=======================================
  Coverage   89.51%   89.51%           
=======================================
  Files         211      211           
  Lines       13448    13448           
=======================================
  Hits        12038    12038           
  Misses       1410     1410           

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