Update renovate config (open-telemetry#1851)

Co-authored-by: Lauri Tulmin <[email protected]>

Author: trask

.github/renovate.json5

@@ -7,18 +7,23 @@
   ignorePresets: [
     ':ignoreModulesAndTests', // needed to keep maven-extension test pom files up-to-date
   ],
-  prHourlyLimit: 5,
+  prHourlyLimit: 5, // we have a large number of parallel runners
+  labels: [
+    'dependencies'
+  ],
   packageRules: [
     {
-      // this is to reduce the number of renovate PRs
-      matchManagers: [
-        'github-actions',
-        'dockerfile',
-      ],
-      extends: [
-        'schedule:weekly',
-      ],
-      groupName: 'weekly update',
+      // reduces the number of Renovate PRs
+      // (patch updates are typically non-breaking)
+      "groupName": "all patch versions",
+      "matchUpdateTypes": ["patch"],
+      "schedule": ["before 8am every weekday"]
+    },
+    {
+      // avoids these Renovate PRs from trickling in throughout the week
+      // (consolidating the review process)
+      "matchUpdateTypes": ["minor", "major"],
+      "schedule": ["before 8am on Monday"]
     },
     {
       matchPackageNames: [