Cherry pick fix: undefined behavior in schema ffi to active_release

[alamb]

Automatic cherry-pick of d8da826

• Originally appeared in fix: undefined behavior in schema ffi #582: fix: undefined behavior in schema ffi

[codecov-commenter]

Codecov Report

Merging #583 (38b77c3) into active_release (5057839) will not change coverage.
The diff coverage is 100.00%.

@@               Coverage Diff               @@
##           active_release     #583   +/-   ##
===============================================
  Coverage           82.45%   82.45%           
===============================================
  Files                 167      167           
  Lines               46156    46156           
===============================================
  Hits                38056    38056           
  Misses               8100     8100           

Impacted Files	Coverage Δ
arrow/src/ffi.rs	87.07% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5057839...38b77c3. Read the comment docs.