nuget(deps): bump YamlDotNet from 15.1.2 to 15.1.4

[dependabot[bot]]

Bumps YamlDotNet from 15.1.2 to 15.1.4.

Release notes

Sourced from YamlDotNet's releases.

Release 15.1.4

• Merge pull request #903 from lahma/license-expression
  Switch to using PackageLicenseExpression

• Merge pull request #904 from airbreather/fix-656
  Add a regression test for #656

Commits

• 22070fd Merge pull request #904 from airbreather/fix-656
• 4da74f4 Merge pull request #903 from lahma/license-expression
• c9b7638 Switch to using PackageLicenseExpression
• 912e5f9 Ensure that this new test can't just pass by leaving the object in its defaul...
• 83beaba It was actually fixed in e1986a45
• See full diff in compare view

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