Keep ints as ints - Githubissues

Pull request checklist

Please check if your PR fulfills the following requirements:

[X] Make sure you are requesting to pull a topic/feature/bugfix branch (right side). Don't request your master!
[X] Make sure you are making a pull request against the develop branch (left side). Also you should start your branch off our develop.
[X] Check the commit's or even all commits' message styles matches our requested structure.
[X] Check your code additions will fail neither code linting checks nor unit test.

Pull request type

Please check the type of change your PR introduces:

[X] Bugfix
[ ] Feature
[ ] Code style update (formatting, renaming)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] Documentation content changes
[ ] Other (please describe):

What is the current behavior?

The new version of pandas occasionally converts int values to floats, making the results return as .0

What is the new behavior?

Check if float return values can be integers, and convert to integers if so.

Does this introduce a breaking change?

[ ] Yes
[X] No

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (e730c98) 94.58% compared to head (91c7553) 94.52%.

Files	Patch %	Lines
raster_analysis/tiling.py	83.33%	1 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #81 +/- ## =========================================== - Coverage 94.58% 94.52% -0.06% =========================================== Files 19 19 Lines 1256 1261 +5 =========================================== + Hits 1188 1192 +4 - Misses 68 69 +1 ``` | [Flag](https://app.codecov.io/gh/wri/gfw-raster-analysis-lambda/pull/81/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wri) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/wri/gfw-raster-analysis-lambda/pull/81/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wri) | `94.52% <83.33%> (-0.06%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wri#carryforward-flags-in-the-pull-request-comment) to find out more.

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wri / gfw-raster-analysis-lambda