chore: group only patch updates (#5174)

## 📄 Description

As the system dependencies grow, it becomes less and less likely, that a
grouped minor and patch update PR can be merged without issues. This
change would only group patch updates into one PR and submit minor
updates individually, keeping the existing exclusion rules in place.

It also updates the label assigned to renovate PRs to not mess with our
package labels.

Author: gfellerph

renovate.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": ["config:recommended"],
-  "labels": ["📦 {{{parentDir}}}"],
+  "labels": ["⛓️ dependencies"],
   "packageRules": [
     {
       "extends": [
@@ -14,14 +14,13 @@
       "groupName": "Angular"
     },
     {
-      "matchUpdateTypes": ["minor", "patch"],
-      "groupName": "all non-major dependencies",
-      "groupSlug": "all-minor-patch",
+      "matchUpdateTypes": ["patch"],
+      "groupName": "all patch dependencies",
+      "groupSlug": "all-patch",
       "matchPackageNames": [
         "*",
         "!typescript",
         "!bootstrap",
-        "!sass",
         "!@storybook/*",
         "!@angular/*",
         "!@stencil/*"