build(deps): bump PolySharp from 1.14.1 to 1.15.0 in the all group

Bumps the all group with 1 update: [PolySharp](https://github.com/Sergio0694/PolySharp).


Updates `PolySharp` from 1.14.1 to 1.15.0
- [Release notes](https://github.com/Sergio0694/PolySharp/releases)
- [Commits](Sergio0694/PolySharp@1.14.1...1.15.0)

---
updated-dependencies:
- dependency-name: PolySharp
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

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

src/Directory.Packages.props

@@ -43,7 +43,7 @@
     <PackageVersion Include="NUnit" Version="4.2.2" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageVersion Include="PdfPig" Version="0.1.9" />
-    <PackageVersion Include="PolySharp" Version="1.14.1">
+    <PackageVersion Include="PolySharp" Version="1.15.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageVersion>