build(deps): bump FirebaseAdmin from 3.0.0 to 3.1.0 (#240)

Bumps [FirebaseAdmin](https://github.com/Firebase/firebase-admin-dotnet) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/Firebase/firebase-admin-dotnet/releases)
- [Commits](firebase/firebase-admin-dotnet@v3.0.0...v3.1.0)

---
updated-dependencies:
- dependency-name: FirebaseAdmin
  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>

src/Eurofurence.App.Server.Services/Eurofurence.App.Server.Services.csproj

@@ -20,7 +20,7 @@
     <PackageReference Include="CsvHelper" Version="33.0.1" />
     <PackageReference Include="dotAPNS" Version="4.5.0" />
     <PackageReference Include="dotAPNS.AspNetCore" Version="2.2.2" />
-    <PackageReference Include="FirebaseAdmin" Version="3.0.0" />
+    <PackageReference Include="FirebaseAdmin" Version="3.1.0" />
     <PackageReference Include="HtmlSanitizer" Version="8.1.870" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.2" />