Bump EntityFrameworkCoreVersion from 6.0.0 to 8.0.0

Bumps `EntityFrameworkCoreVersion` from 6.0.0 to 8.0.0.

Updates `Microsoft.EntityFrameworkCore.Relational` from 6.0.0 to 8.0.0
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v6.0.0...v8.0.0)

Updates `Microsoft.EntityFrameworkCore` from 6.0.0 to 8.0.0
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v6.0.0...v8.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.EntityFrameworkCore.Relational
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: Microsoft.EntityFrameworkCore
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Directory.Build.props

@@ -18,7 +18,7 @@
     <TargetFrameworkName>net6.0</TargetFrameworkName>
     <CodeAnalysisFrozenVersion>4.1.0</CodeAnalysisFrozenVersion>
     <DemystifierFrozenVersion>0.4.1</DemystifierFrozenVersion>
-    <EntityFrameworkCoreFrozenVersion>6.0.0</EntityFrameworkCoreFrozenVersion>
+    <EntityFrameworkCoreFrozenVersion>8.0.0</EntityFrameworkCoreFrozenVersion>
     <HumanizerFrozenVersion>2.14.1</HumanizerFrozenVersion>
 
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
@@ -30,7 +30,7 @@
     <CoverletVersion>6.0.*</CoverletVersion>
     <DapperVersion>2.1.*</DapperVersion>
     <DateOnlyTimeOnlyVersion>2.1.*</DateOnlyTimeOnlyVersion>
-    <EntityFrameworkCoreVersion>7.0.*</EntityFrameworkCoreVersion>
+    <EntityFrameworkCoreVersion>8.0.*</EntityFrameworkCoreVersion>
     <FluentAssertionsVersion>6.12.*</FluentAssertionsVersion>
     <GitHubActionsTestLoggerVersion>2.3.*</GitHubActionsTestLoggerVersion>
     <InheritDocVersion>1.3.*</InheritDocVersion>