Bump boto3 from 1.20.43 to 1.20.44 (#170)

Bumps [boto3](https://github.com/boto/boto3) from 1.20.43 to 1.20.44.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/boto/boto3/blob/develop/CHANGELOG.rst">boto3's changelog</a>.</em></p>
<blockquote>
<h1>1.20.44</h1>
<ul>
<li>api-change:<code>frauddetector</code>: [<code>botocore</code>] Added new APIs for viewing past predictions and obtaining prediction metadata including prediction explanations: ListEventPredictions and GetEventPredictionMetadata</li>
<li>api-change:<code>ebs</code>: [<code>botocore</code>] Documentation updates for Amazon EBS Direct APIs.</li>
<li>api-change:<code>codeguru-reviewer</code>: [<code>botocore</code>] Added failure state and adjusted timeout in waiter</li>
<li>api-change:<code>securityhub</code>: [<code>botocore</code>] Adding top level Sample boolean field</li>
<li>api-change:<code>sagemaker</code>: [<code>botocore</code>] API changes relating to Fail steps in model building pipeline and add PipelineExecutionFailureReason in PipelineExecutionSummary.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/boto/boto3/commit/a40d0e41f2c18003c172c445ba775180ec71a312"><code>a40d0e4</code></a> Merge branch 'release-1.20.44'</li>
<li><a href="https://github.com/boto/boto3/commit/e3a025955a0f5d44c36735f154b76c448a2825e0"><code>e3a0259</code></a> Bumping version to 1.20.44</li>
<li><a href="https://github.com/boto/boto3/commit/f14d4989cd44240404341b2196a26fa8182f07d0"><code>f14d498</code></a> Add changelog entries from botocore</li>
<li><a href="https://github.com/boto/boto3/commit/86d30c93718abce17a38d65678b1920282556b67"><code>86d30c9</code></a> Merge branch 'release-1.20.43' into develop</li>
<li>See full diff in <a href="https://github.com/boto/boto3/compare/1.20.43...1.20.44">compare view</a></li>
</ul>
</details>
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