Setup renovate for updating dependencies (#11565)

.github/renovate.json

@@ -0,0 +1,46 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "dependencyDashboard": true,
+  "suppressNotifications": ["prEditedNotification"],
+  "extends": ["config:base"],
+  "labels": ["dependencies"],
+  "pre-commit": {
+    "enabled": true
+  },
+  "customManagers": [
+    {
+      "customType": "regex",
+      "fileMatch": ["^pyproject.toml$"],
+      "matchStrings": [
+        "\\n\\[tool\\.typeshed\\]\\npyright_version\\s*=\\s*(\"|')(?<currentValue>[\\d.]*?)(\"|')\\s*?\\n"
+      ],
+      "depNameTemplate": "pyright",
+      "datasourceTemplate": "npm"
+    }
+  ],
+  "packageRules": [
+    {
+      "groupName": "GitHub Actions update",
+      "matchManagers": ["github-actions"],
+      "description": "Quarterly update of GitHub Action dependencies",
+      "separateMajorMinor": "false",
+      "schedule": ["every 3 months on the first day of the month"]
+    },
+    {
+      "groupName": "Quarterly dependency update",
+      "matchManagers": ["pip_requirements", "pre-commit"],
+      "excludePackageNames": ["pytype", "pyright"],
+      "description": "Quarterly update of most test dependencies",
+      "separateMajorMinor": "false",
+      "schedule": ["every 3 months on the first day of the month"]
+    },
+    {
+      "groupName": "Daily dependency update",
+      "matchManagers": ["pip_requirements", "regex"],
+      "matchPackageNames": ["pytype", "pyright"],
+      "description": "Daily update of pyright and pytype",
+      "separateMajorMinor": "false",
+      "schedule": ["daily"]
+    }
+  ]
+}