Add additional metadata to vectorstore results

[lrafeei]

This PR adds metadata.page_label search result to the vectorstore events tests

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	black	1	0	0	0.66s
✅ PYTHON	flake8	1		0	0.36s
✅ PYTHON	isort	1	0	0	0.19s
✅ PYTHON	pylint	1		0	1.74s

See detailed report in MegaLinter reports
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

MegaLinter is graciously provided by

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.27%. Comparing base (9dd76a8) to head (81e03b3).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1290      +/-   ##
==========================================
- Coverage   81.31%   81.27%   -0.04%     
==========================================
  Files         201      201              
  Lines       22174    22174              
  Branches     3519     3519              
==========================================
- Hits        18030    18022       -8     
- Misses       2979     2985       +6     
- Partials     1165     1167       +2     

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