Fix memory safety bug on IBM to IEEE conversion using Numba on MacOS

[tasansal]

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[codecov-commenter]

Codecov Report

Merging #117 (8ae4bbf) into main (21f44ad) will increase coverage by 0.19%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##             main     #117      +/-   ##
==========================================
+ Coverage   81.21%   81.41%   +0.19%     
==========================================
  Files          42       42              
  Lines        1565     1560       -5     
  Branches      200      198       -2     
==========================================
- Hits         1271     1270       -1     
+ Misses        260      256       -4     
  Partials       34       34              

Impacted Files	Coverage Δ
src/mdio/segy/ebcdic.py	100.00% <ø> (ø)
src/mdio/segy/ibm_float.py	46.42% <18.51%> (+3.09%)	⬆️
tests/unit/test_ibm_ieee.py	100.00% <100.00%> (ø)

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