Bump PolySharp from 1.14.1 to 1.15.0 in /src (#49)

Bumps [PolySharp](https://github.com/Sergio0694/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
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Destructurama.JsonNet/Destructurama.JsonNet.csproj

@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="Serilog" Version="3.1.1" />
-    <PackageReference Include="PolySharp" Version="1.14.1" PrivateAssets="All" />
+    <PackageReference Include="PolySharp" Version="1.15.0" PrivateAssets="All" />
     <InternalsVisibleTo Include="Destructurama.JsonNet.Tests, PublicKey=00240000048000009400000006020000002400005253413100040000010001000fe215af9b769897395aac526ca6744222fcf543787b16f58980844d6c49f65bbf0a62502d69646c58f14a8a29ba60d43c85a2a5ef1ed103c9a0e18d6491e4b0bafd2c25e290028d19203d4366ae5651aafd48abaf485588fd6a25fbe23c2c9a644a24337a041966b09cbb73dc3a080bf79564d15a26e97c1bff4f345ee256a9" />
     <InternalsVisibleTo Include="Benchmarks, PublicKey=00240000048000009400000006020000002400005253413100040000010001000fe215af9b769897395aac526ca6744222fcf543787b16f58980844d6c49f65bbf0a62502d69646c58f14a8a29ba60d43c85a2a5ef1ed103c9a0e18d6491e4b0bafd2c25e290028d19203d4366ae5651aafd48abaf485588fd6a25fbe23c2c9a644a24337a041966b09cbb73dc3a080bf79564d15a26e97c1bff4f345ee256a9" />
   </ItemGroup>