sqlite: reuse cached column names in all() and get()

[geeksilva97]

Makes StatementSync.prototype.all and StatementSync.prototype.get to leverage existing cache

[nodejs-github-bot]

Review requested:

• @nodejs/sqlite

[araujogui]

LGTM

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.32%. Comparing base (91a99c5) to head (c83e627).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/node_sqlite.cc	66.66%	2 Missing and 5 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #65276   +/-   ##
=======================================
  Coverage   90.32%   90.32%           
=======================================
  Files         751      751           
  Lines      250000   249977   -23     
  Branches    47231    47226    -5     
=======================================
- Hits       225816   225803   -13     
- Misses      15566    15571    +5     
+ Partials     8618     8603   -15     

Files with missing lines	Coverage Δ
src/node_sqlite.h	83.33% <ø> (ø)
src/node_sqlite.cc	81.26% <66.66%> (-0.37%)	⬇️

... and 29 files with indirect coverage changes

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