fix: add arrow-buffer to arrow-expression feature

[zachschuermann]

When running cargo-publish the delta_kernel crate failed to compile; needed to add arrow-buffer to arrow-expression feature.

error[E0432]: unresolved import `arrow_buffer`
  --> src/engine/arrow_expression.rs:13:5
   |
13 | use arrow_buffer::OffsetBuffer;
   |     ^^^^^^^^^^^^ use of undeclared crate or module `arrow_buffer`

For more information about this error, try `rustc --explain E0432`.
error: could not compile `delta_kernel` (lib) due to 1 previous error

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.86%. Comparing base (04e6a18) to head (9958088).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #332   +/-   ##
=======================================
  Coverage   73.86%   73.86%           
=======================================
  Files          43       43           
  Lines        8078     8078           
  Branches     8078     8078           
=======================================
  Hits         5967     5967           
  Misses       1732     1732           
  Partials      379      379           

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[zachschuermann]

I suppose to catch something like this we could run cargo package in the CI but that feels clunky..? Anyone know if we can mimic cargo-publish just through the right cargo build incantation?

[nicklan]

nice catch! can you make a follow-up to make some compile tests with reasonable feature flags enabled/disabled

[zachschuermann]

Created #333 for follow-up!