[backport] Avoid pulling poet proof multiple times in 1:N setups (#5911)

[poszu]

Description

Backported #5911 to v1.5

Test Plan

n/a

TODO

• Explain motivation or link existing issue(s)
• Test changes and document test plan
• Update documentation as needed
• Update changelog as needed

[codecov]

Codecov Report

Attention: Patch coverage is 87.65432% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 80.4%. Comparing base (8d35429) to head (c1f9fb7).
Report is 1 commits behind head on v1.5.

Files	Patch %	Lines
activation/poet.go	89.3%	4 Missing and 3 partials ⚠️
activation/poetdb.go	71.4%	2 Missing ⚠️
common/types/poet.go	66.6%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            v1.5   #5914   +/-   ##
=====================================
  Coverage   80.4%   80.4%           
=====================================
  Files        285     285           
  Lines      29544   29579   +35     
=====================================
+ Hits       23769   23804   +35     
  Misses      4168    4168           
  Partials    1607    1607           

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