Fix PR labeler

[Dandandan]

Which issue does this PR close?

Closes #462

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

[Dandandan]

@alamb this should be merged to master to be able to test the change.

[codecov-commenter]

Codecov Report

Merging #468 (d9ddb2f) into master (1f1c637) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #468   +/-   ##
=======================================
  Coverage   82.65%   82.66%           
=======================================
  Files         165      165           
  Lines       45563    45550   -13     
=======================================
- Hits        37662    37654    -8     
+ Misses       7901     7896    -5     

Impacted Files	Coverage Δ
arrow/src/ipc/reader.rs	84.30% <0.00%> (-0.04%)	⬇️
parquet/src/record/api.rs	92.48% <0.00%> (-0.03%)	⬇️
arrow/src/ffi.rs	82.85% <0.00%> (ø)
arrow/src/array/ord.rs	63.33% <0.00%> (ø)
arrow/src/compute/kernels/sort.rs	94.15% <0.00%> (ø)
parquet/src/encodings/decoding.rs	92.47% <0.00%> (ø)
arrow/src/json/reader.rs	84.02% <0.00%> (+0.11%)	⬆️
parquet/src/arrow/array_reader.rs	77.45% <0.00%> (+0.13%)	⬆️

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[alamb]

@Dandandan I pushed this change to my fork and made a PR there: alamb#12 looks good 👍

[alamb]

Thank you very much @Dandandan