Update CHANGELOG.md

[spolcyn]

Update CHANGELOG with changes from PR "Change compression locking order"(#1932).

[erimatnor]

One minor nit on phrasing.

[codecov]

Codecov Report

Merging #1964 into master will decrease coverage by 78.61%.
The diff coverage is 12.69%.

@@             Coverage Diff             @@
##           master    #1964       +/-   ##
===========================================
- Coverage   89.59%   10.97%   -78.62%     
===========================================
  Files         150      205       +55     
  Lines       22845    30183     +7338     
===========================================
- Hits        20467     3313    -17154     
- Misses       2378    26870    +24492     

Flag	Coverage Δ
#cron	?
#pr	10.97% <12.69%> (-78.48%)	⬇️

Impacted Files	Coverage Δ
src/bgw/job_stat.c	49.45% <ø> (-38.60%)	⬇️
src/bgw_policy/drop_chunks.c	8.92% <ø> (-86.39%)	⬇️
src/catalog.c	66.66% <ø> (-19.14%)	⬇️
src/catalog.h	100.00% <ø> (+25.00%)	⬆️
src/chunk_adaptive.c	11.93% <0.00%> (-75.97%)	⬇️
src/chunk_append/chunk_append.c	0.00% <0.00%> (-97.15%)	⬇️
src/chunk_append/exec.c	0.00% <ø> (-94.31%)	⬇️
src/chunk_append/explain.c	0.00% <0.00%> (-80.65%)	⬇️
src/chunk_append/planner.c	1.83% <0.00%> (-91.45%)	⬇️
src/chunk_constraint.c	0.00% <0.00%> (-93.13%)	⬇️
... and 263 more

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