chore(renovate): remove v6, add v8 (#3616)

Author: liamdebeasi

renovate.json

@@ -36,6 +36,18 @@
         "static/code/stackblitz/**/vue/package.json"
       ]
     },
+    {
+      "matchPackagePatterns": ["@ionic/"],
+      "minimumReleaseAge": "0 days",
+      "allowedVersions": "^8.0.0",
+      "groupName": "ionic",
+      "matchFileNames": [
+        "static/code/stackblitz/v8/angular/package.json",
+        "static/code/stackblitz/v8/html/package.json",
+        "static/code/stackblitz/v8/react/package.json",
+        "static/code/stackblitz/v8/vue/package.json"
+      ]
+    },
     {
       "matchPackagePatterns": ["@ionic/"],
       "minimumReleaseAge": "0 days",
@@ -50,6 +62,7 @@
     },
     {
       "matchPackagePatterns": ["@ionic/"],
+      "enabled": false,
       "minimumReleaseAge": "0 days",
       "allowedVersions": "^6.0.0",
       "groupName": "ionic",