(deps): Bump MSBuild.ProjectCreation from 13.0.0 to 14.0.0 in /src

Bumps [MSBuild.ProjectCreation](https://github.com/jeffkl/MSBuildProjectCreator) from 13.0.0 to 14.0.0.
- [Release notes](https://github.com/jeffkl/MSBuildProjectCreator/releases)
- [Commits](jeffkl/MSBuildProjectCreator@v13.0.0...v14.0.0)

---
updated-dependencies:
- dependency-name: MSBuild.ProjectCreation
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/Directory.Packages.props

@@ -21,7 +21,7 @@
     <PackageVersion Include="Buildalyzer" Version="7.0.2" />
     <PackageVersion Include="JsonSchema.Net.Generation" Version="4.5.1" />
     <PackageVersion Include="JunitXml.TestLogger" Version="4.1.0" />
-    <PackageVersion Include="MSBuild.ProjectCreation" Version="13.0.0" />
+    <PackageVersion Include="MSBuild.ProjectCreation" Version="14.0.0" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Build" Version="17.11.4" />
     <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="17.11.4" />