[Universal] - unpin patch versions for dotnet runtime & core

Author: gauravsaini04

src/universal/.devcontainer/devcontainer.json

@@ -10,11 +10,7 @@
             "userGid": "1000"
         },
         "ghcr.io/devcontainers/features/dotnet:2": {
-            "version": "8.0",
-			// Temporarily pinning as the dotnet-install script is flakey (attempts to install bits of 7.0.19 of Runtime, but 7.0.18 of Core & Runtime)
-			// See https://github.com/devcontainers/images/actions/runs/9083566665/job/24962519615?pr=1065#step:3:6146
-            "dotnetRuntimeVersions": "7.0.18", 
-            "aspNetCoreRuntimeVersions": "7.0.18"
+            "version": "8.0"
         },
         "ghcr.io/devcontainers/features/hugo:1": {
             "version": "latest"