Bump MediatR.CommandQuery.Audit from 15.9.7 to 15.9.8 in /service

Bumps [MediatR.CommandQuery.Audit](https://github.com/loresoft/MediatR.CommandQuery) from 15.9.7 to 15.9.8.
- [Release notes](https://github.com/loresoft/MediatR.CommandQuery/releases)
- [Commits](loresoft/MediatR.CommandQuery@v15.9.7...v15.9.8)

---
updated-dependencies:
- dependency-name: MediatR.CommandQuery.Audit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

service/src/InstructorIQ.Core/InstructorIQ.Core.csproj

@@ -21,7 +21,7 @@
     <PackageReference Include="CsvHelper" Version="33.0.1" />
     <PackageReference Include="FluentCommand.SqlServer" Version="12.13.2" />
     <PackageReference Include="Handlebars.Net" Version="2.1.6" />
-    <PackageReference Include="MediatR.CommandQuery.Audit" Version="15.9.7" />
+    <PackageReference Include="MediatR.CommandQuery.Audit" Version="15.9.8" />
     <PackageReference Include="MediatR.CommandQuery.EntityFrameworkCore" Version="15.9.8" />
     <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.10" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.10" />