Bump FluentValidation from 10.2.3 to 10.3.0 (#300)

Bumps [FluentValidation](https://github.com/JeremySkinner/fluentvalidation) from 10.2.3 to 10.3.0.
- [Release notes](https://github.com/JeremySkinner/fluentvalidation/releases)
- [Changelog](https://github.com/FluentValidation/FluentValidation/blob/main/Changelog.txt)
- [Commits](https://github.com/JeremySkinner/fluentvalidation/compare/10.2.3...10.3.0)

---
updated-dependencies:
- dependency-name: FluentValidation
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

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

ErsatzTV/ErsatzTV.csproj

@@ -18,7 +18,7 @@
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
       <PackageReference Include="Blazored.LocalStorage" Version="4.1.2" />
-      <PackageReference Include="FluentValidation" Version="10.2.3" />
+      <PackageReference Include="FluentValidation" Version="10.3.0" />
       <PackageReference Include="FluentValidation.AspNetCore" Version="10.2.3" />
       <PackageReference Include="HtmlSanitizer" Version="5.0.404" />
       <PackageReference Include="LanguageExt.Core" Version="3.4.15" />