Update dependency coverlet.collector to v3

[mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
coverlet.collector	nuget	major	1.2.0 -> 3.1.0

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Release Notes

coverlet-coverage/coverlet

v3.1.0

• 141 adds performance improvements to coverage tracker for multi-threaded scenarios
• a189fc2 replaces Jil with JSON.NET for JSON serialization
• #​147 adds support for instrumenting constructors
• 4efea75 ensures output filenames have extensions if non is specified
• #​154 makes enumeration based MSBuild properties case insensitive
• #​164 adds support for specifying include filters
• #​169 adds slight improvement for coverage tracking performance

v3.0.0

• #​131 makes a slight change to the Coverlet JSON format
• 807f7b1 uses a separate coverlet.tracker assembly to hold tracking code
• #​128 adds support for assemblies with .exe extension
• a1f18b4 improves identifying compiler generated types
• #​134 adds considerable coverage tracking performance improvements

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Configuration

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