Fix bool column chunk buffer size

[benjaminwinger]

The buffer wasn't being resized to match the bitpacked data. I think it was a mixup which occurred because the Null and bool bitpacking PRs were open simultaneously and the change wasn't properly propagated to the boolean bitpacking.

[codecov]

Codecov Report

Patch coverage: 88.88% and project coverage change: -0.20% ⚠️

Comparison is base (2c45803) 89.86% compared to head (62d50f3) 89.67%.
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1953      +/-   ##
==========================================
- Coverage   89.86%   89.67%   -0.20%     
==========================================
  Files         873      870       -3     
  Lines       32066    32022      -44     
==========================================
- Hits        28817    28716     -101     
- Misses       3249     3306      +57     

Files Changed	Coverage Δ
src/storage/copier/column_chunk.cpp	83.93% <87.50%> (+0.04%)	⬆️
src/include/storage/copier/column_chunk.h	100.00% <100.00%> (ø)

... and 26 files with indirect coverage changes

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