fix(core-api): fix order in delegates/{id}/blocks

[rainydio]

Summary

Order block by height:desc for delegates/{id}/blocks

[codecov]

Codecov Report

Merging #3932 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #3932   +/-   ##
========================================
  Coverage    97.56%   97.56%           
========================================
  Files          629      629           
  Lines        14540    14540           
  Branches      1729     1729           
========================================
  Hits         14186    14186           
  Misses         165      165           
  Partials       189      189           

Flag	Coverage Δ
#functional	6.82% <ø> (ø)
#integration	9.85% <ø> (ø)
#unit	95.72% <ø> (ø)

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Impacted Files	Coverage Δ
packages/core-api/src/routes/delegates.ts	100.00% <ø> (ø)

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