Update Simplify.Web requirement from 4.4.* to 4.5.*

Updates the requirements on [Simplify.Web](https://github.com/SimplifyNet/Simplify.Web) to permit the latest version.
- [Release notes](https://github.com/SimplifyNet/Simplify.Web/releases)
- [Commits](SimplifyNet/Simplify.Web@4.4...4.5)

---
updated-dependencies:
- dependency-name: Simplify.Web
  dependency-type: direct:production
...

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

Author: dependabot[bot]

src/Simplify.Web.Multipart/Simplify.Web.Multipart.csproj

@@ -23,7 +23,7 @@
 		<PackageReleaseNotes>See https://github.com/SimplifyNet/Simplify.Web.Multipart/tree/master/src/Simplify.Web.Multipart/CHANGELOG.md for details</PackageReleaseNotes>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="Simplify.Web" Version="4.4.*" />
+		<PackageReference Include="Simplify.Web" Version="4.5.*" />
 		<PackageReference Include="HttpMultipartParser" Version="5.0.*" />
 	</ItemGroup>
 	<ItemGroup>