Bump PythonNet to 1.0.5.28

[Martin-Molinero]

Description

• Bump PythonNet to 1.0.5.28 Initialization hang fix pythonnet#38

Related Issue

Related to https://github.com/QuantConnect/LeanCloud/issues/505

Motivation and Context

PythonNet is up to date

Requires Documentation Change

N/A

How Has This Been Tested?

Unit, regression tests, cloud testing, research and backtesting

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Non-functional change (xml comments/documentation/etc)

Checklist:

• My code follows the code style of this project.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My branch follows the naming convention bug-<issue#>-<description> or feature-<issue#>-<description>