Bump protobuf-net from 3.2.30 to 3.2.45

Bumps [protobuf-net](https://github.com/protobuf-net/protobuf-net) from 3.2.30 to 3.2.45.
- [Release notes](https://github.com/protobuf-net/protobuf-net/releases)
- [Changelog](https://github.com/protobuf-net/protobuf-net/blob/main/docs/releasenotes.md)
- [Commits](protobuf-net/protobuf-net@3.2.30...3.2.45)

---
updated-dependencies:
- dependency-name: protobuf-net
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

DepotDownloader/DepotDownloader.csproj

@@ -24,7 +24,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="protobuf-net" Version="3.2.30" />
+    <PackageReference Include="protobuf-net" Version="3.2.45" />
     <PackageReference Include="QRCoder" Version="1.6.0" />
     <PackageReference Include="SteamKit2" Version="3.0.0-Beta.5" />
   </ItemGroup>