fixup! feat(solution): remove Expecto and add MSTest 3 and Unquote

Author: xperiandri

.devcontainer/devcontainer.json

@@ -23,8 +23,7 @@
         "ghcr.io/devcontainers-contrib/features/starship:1": {},
         // https://github.com/devcontainers/features/blob/main/src/dotnet/README.md
         "ghcr.io/devcontainers/features/dotnet:2": {
-            "version": "7.0",
-            "additionalVersions": "6.0"
+            "version": "8.0"
         }
     },
     "overrideFeatureInstallOrder": [
@@ -70,4 +69,4 @@
         "restore": "dotnet tool restore && dotnet restore"
     },
     "waitFor": "updateContentCommand"
-}
+}