Bump FluentAssertions from 6.12.2 to 8.6.0

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-version: 8.6.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

ApiTests.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.*" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.*" />
     <PackageReference Include="RestSharp" Version="112.*" />
-    <PackageReference Include="FluentAssertions" Version="6.*" />
+    <PackageReference Include="FluentAssertions" Version="8.6.0" />
     <PackageReference Include="Wiremock.Net" Version="1.*" />
   </ItemGroup>
 </Project>

packages.lock.json

@@ -16,12 +16,9 @@
       },
       "FluentAssertions": {
         "type": "Direct",
-        "requested": "[6.*, )",
-        "resolved": "6.12.2",
-        "contentHash": "8YE+xJmT8wgzEpFuzJ4S62oFhEL/AKouMz1RWPEMEUhy9H11aRQlGIWcHurH5BEy7tbF6gb0CJrs0wOw/AtDcQ==",
-        "dependencies": {
-          "System.Configuration.ConfigurationManager": "4.4.0"
-        }
+        "requested": "[8.6.0, )",
+        "resolved": "8.6.0",
+        "contentHash": "h5tb0odkLRWuwjc5EhwHQZpZm7+5YmJBNn379tJPIK04FOv3tuOfhGZTPFSuj/MTgzfV6UlAjfbSEBcEGhGucQ=="
       },
       "Microsoft.NET.Test.Sdk": {
         "type": "Direct",
@@ -1141,14 +1138,6 @@
           "System.Runtime": "4.3.0"
         }
       },
-      "System.Configuration.ConfigurationManager": {
-        "type": "Transitive",
-        "resolved": "4.4.0",
-        "contentHash": "gWwQv/Ug1qWJmHCmN17nAbxJYmQBM/E94QxKLksvUiiKB1Ld3Sc/eK1lgmbSjDFxkQhVuayI/cGFZhpBSodLrg==",
-        "dependencies": {
-          "System.Security.Cryptography.ProtectedData": "4.4.0"
-        }
-      },
       "System.Console": {
         "type": "Transitive",
         "resolved": "4.3.0",
@@ -1686,11 +1675,6 @@
           "System.Threading.Tasks": "4.3.0"
         }
       },
-      "System.Security.Cryptography.ProtectedData": {
-        "type": "Transitive",
-        "resolved": "4.4.0",
-        "contentHash": "cJV7ScGW7EhatRsjehfvvYVBvtiSMKgN8bOVI0bQhnF5bU7vnHVIsH49Kva7i7GWaWYvmEzkYVk1TC+gZYBEog=="
-      },
       "System.Security.Cryptography.X509Certificates": {
         "type": "Transitive",
         "resolved": "4.3.0",