🐛 Fixed member exports timing out for large sites (#14876)

[ErisDS]

This is a cherry pick of 61aa30b but the tests fail on 5.0 and I can't see why 🤔

[codecov]

Codecov Report

Merging #14878 (32acdd9) into main (d6d6841) will decrease coverage by 0.10%.
The diff coverage is 9.67%.

@@            Coverage Diff             @@
##             main   #14878      +/-   ##
==========================================
- Coverage   61.96%   61.86%   -0.11%     
==========================================
  Files         568      569       +1     
  Lines       45984    46067      +83     
  Branches     4190     4191       +1     
==========================================
+ Hits        28495    28499       +4     
- Misses      17445    17524      +79     
  Partials       44       44              

Impacted Files	Coverage Δ
core/server/services/members/exporter/query.js	6.81% <6.81%> (ø)
...ver/api/canary/utils/serializers/output/members.js	86.70% <33.33%> (+0.72%)	⬆️
core/server/services/members/service.js	48.06% <100.00%> (ø)

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