Update CHANGELOG

[martincostello]

• Update the changelog for the 7.2.4 release.
• Update the benchmark baseline for 7.2.4.

[codecov]

Codecov Report

Merging #1284 (2814ee2) into main (bde632e) will decrease coverage by 0.16%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1284      +/-   ##
==========================================
- Coverage   83.41%   83.25%   -0.16%     
==========================================
  Files         263      263              
  Lines        6348     6290      -58     
  Branches      993      993              
==========================================
- Hits         5295     5237      -58     
  Misses        844      844              
  Partials      209      209              

Flag	Coverage Δ
linux	83.25% <ø> (-0.16%)	⬇️
macos	?
windows	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../Retry/RetryResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)
...eout/TimeoutResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)
.../RateLimiterResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)