Add authenticode signing for assemblies on linux builds

[adityapatwardhan]

PR Summary

Add authenticode signing for all assemblies in the linux packages.

PR Context

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
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• Breaking changes
  • None
  • OR
  • Experimental feature(s) needed
    • Experimental feature name(s):
• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed
    • Issue filed:
• Testing - New and feature
  • N/A or can only be tested interactively
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  • Make sure you've added a new test if existing tests do not effectively test the code changed
• Tooling
  • I have considered the user experience from a tooling perspective and don't believe tooling will be impacted.
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    • Impact on PowerShell Editor Services which is used in the PowerShell extension for VSCode
      (which runs in a different PS Host).
      • Issue filed:
    • Impact on Completions (both in the console and in editors) - one of PowerShell's most powerful features.
      • Issue filed:
    • Impact on PSScriptAnalyzer (which provides linting & formatting in the editor extensions).
      • Issue filed:
    • Impact on EditorSyntax (which provides syntax highlighting with in VSCode, GitHub, and many other editors).
      • Issue filed:

[pull-request-quantifier-deprecated]

This PR has 829 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!

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Quantification details

Label      : Extra Large
Size       : +645 -184
Percentile : 94.3%

Total files changed: 5

Change summary by file extension:
.yml : +645 -184

Change counts above are quantified counts, based on the PullRequestQuantifier customizations.

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[adityapatwardhan]

/backport to release/v7.3.0

[ghost]

🎉v7.3.0 has been released which incorporates this pull request.:tada:

Handy links:

• Release Notes

[ghost]

🎉v7.4.0-preview.1 has been released which incorporates this pull request.:tada:

Handy links:

• Release Notes

[TravisEz13]

/backport to release/v7.2.9