Renovate configuration (#121)

.github/renovate.json

@@ -0,0 +1,32 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base",
+    ":combinePatchMinorReleases",
+    ":dependencyDashboard",
+    ":maintainLockFilesWeekly",
+    ":pinAllExceptPeerDependencies",
+    ":prConcurrentLimit10",
+    ":rebaseStalePrs",
+    "schedule:weekends",
+    ":separateMajorReleases"
+  ],
+  "enabledManagers": ["dockerfile", "docker-compose", "github-actions"],
+  "packageRules": [
+    {
+      "groupName": "dockerfile minor",
+      "matchManagers": ["dockerfile"],
+      "matchUpdateTypes": ["minor", "patch"]
+    },
+    {
+      "groupName": "docker-compose minor",
+      "matchManagers": ["docker-compose"],
+      "matchUpdateTypes": ["minor", "patch"]
+    },
+    {
+      "groupName": "gh minor",
+      "matchManagers": ["github-actions"],
+      "matchUpdateTypes": ["minor", "patch"]
+    }
+  ]
+}