Add funnel check to BaseAge pipeline

[twalsh-ebi]

This PR would add a funnel check to the BaseAge pipeline, with the aim of preventing a reoccurrence of ENSINT-2009.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 31.44%. Comparing base (e87065e) to head (22277a3).

❗ There is a different number of reports uploaded between BASE (e87065e) and HEAD (22277a3). Click for more details.

HEAD has 7 uploads less than BASE

Flag	BASE (e87065e)	HEAD (22277a3)
	8	1

Additional details and impacted files

@@               Coverage Diff                @@
##           release/114     #854       +/-   ##
================================================
- Coverage        60.43%   31.44%   -29.00%     
================================================
  Files              197       86      -111     
  Lines            22430    12941     -9489     
  Branches          3619     2714      -905     
================================================
- Hits             13556     4069     -9487     
- Misses            7659     8217      +558     
+ Partials          1215      655      -560     

Flag	Coverage Δ
	31.44% <ø> (-29.00%)	⬇️

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