Upgrade Nuget packages (#107)

[Pull requests practices for the SSI
team](https://github.com/equinor/ssi-infrastructure/blob/main/docs/pr_practices.md)

## Aim of the PR
This PR fixes
[AB#262607](https://dev.azure.com/EquinorASA/bb9bd8cb-74f7-4ffa-b0cb-60eff0a0be58/_workitems/edit/262607)

Upgrade Nuget packages.

Author: eoye

client/Boundaries/Backend/Backend.csproj

@@ -8,8 +8,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Cors" Version="2.3.0" />
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.2" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="7.2.0" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.3" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="8.0.0" />
   </ItemGroup>
 
   <ItemGroup>

client/Boundaries/TestBoundaries/TestBoundaries.csproj

@@ -10,10 +10,10 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="FluentAssertions" Version="8.0.1" />
-        <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.2" />
+        <PackageReference Include="FluentAssertions" Version="8.2.0" />
+        <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.3" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
-        <PackageReference Include="Testcontainers" Version="4.2.0" />
+        <PackageReference Include="Testcontainers" Version="4.3.0" />
         <PackageReference Include="xunit" Version="2.9.3" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>