Fix informatica mapping url

[elic-eon]

🤔 Why?

The URL of INFA mappings is wrong.

🤓 What?

• use urljoin to get the correct URL

🧪 Tested?

Manually verified the URL in the MCE is correct.

☑️ 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
11556	10268	89%	85%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
metaphor/informatica/extractor.py	89%	🟢
TOTAL	89%	🟢

updated for commit: 07b6329 by action🐍

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.85%. Comparing base (127ce75) to head (e7472ea).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #932   +/-   ##
=======================================
  Coverage   88.85%   88.85%           
=======================================
  Files         178      178           
  Lines       11556    11556           
=======================================
  Hits        10268    10268           
  Misses       1288     1288           

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