Fix compilation errors in tests

[jturner314]

See rust-ndarray/ndarray#1051. I think these changes will fix the errors, but I haven't tested them. An alternative would be to change .into_iter() to .iter(); I'm not sure which approach is better.

[bluss]

I would recommend users to use .iter() when possible (it should be a faster iterator?).

[codecov-commenter]

Codecov Report

Merging #91 (8a035d7) into master (312952b) will decrease coverage by 4.98%.
The diff coverage is 2.54%.

@@            Coverage Diff             @@
##           master      #91      +/-   ##
==========================================
- Coverage   16.11%   11.13%   -4.99%     
==========================================
  Files          19       21       +2     
  Lines        1117     1608     +491     
==========================================
- Hits          180      179       -1     
- Misses        937     1429     +492     

Impacted Files	Coverage Δ
onnxruntime-sys/build.rs	0.00% <0.00%> (ø)
...runtime-sys/src/generated/linux/x86_64/bindings.rs	0.00% <ø> (ø)
...untime-sys/src/generated/macos/aarch64/bindings.rs	0.00% <0.00%> (ø)
...runtime-sys/src/generated/macos/x86_64/bindings.rs	0.00% <ø> (ø)
onnxruntime/src/download.rs	0.00% <0.00%> (ø)
onnxruntime/src/environment.rs	89.83% <ø> (ø)
onnxruntime/src/error.rs	62.50% <ø> (ø)
onnxruntime/src/lib.rs	41.48% <0.00%> (-1.07%)	⬇️
onnxruntime/src/session.rs	0.00% <0.00%> (ø)
onnxruntime/src/tensor/ort_tensor.rs	79.16% <100.00%> (ø)
... and 4 more

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[nbigaouette]

Awesome, thanks a lot!