ci/cd: use dependabot for automatic dependency upgrades

.github/dependabot.yml

@@ -1,12 +1,107 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for more information:
-# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-# https://containers.dev/guide/dependabot
-
 version: 2
+
+pull-request-branch-name:
+  separator: "-"
+
+multi-ecosystem-groups:
+  all-dependencies:
+    schedule:
+      interval: "weekly"
+      day: "friday"
+      time: "17:00"
+      timezone: "Europe/Zurich"
+    labels:
+      - "dependencies"
+
 updates:
- - package-ecosystem: "devcontainers"
-   directory: "/"
-   schedule:
-     interval: weekly
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    patterns: ["*"]
+    multi-ecosystem-group: "all-dependencies"
+    open-pull-requests-limit: 2
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "gomod"
+    directory: "/backend"
+    patterns: ["*"]
+    multi-ecosystem-group: "all-dependencies"
+    open-pull-requests-limit: 2
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "npm"
+    directories:
+      - "/frontend"
+      - "/tests"
+      - "/email-templates"
+    patterns: ["*"]
+    multi-ecosystem-group: "all-dependencies"
+    versioning-strategy: "increase-if-necessary"
+    open-pull-requests-limit: 2
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "docker"
+    directories:
+      - "/docker"
+      - "/tests/setup"
+    patterns: ["*"]
+    multi-ecosystem-group: "all-dependencies"
+    open-pull-requests-limit: 2
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "docker-compose"
+    directories:
+      - "/"
+      - "/tests/setup"
+    patterns: ["*"]
+    multi-ecosystem-group: "all-dependencies"
+    open-pull-requests-limit: 2
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "devcontainers"
+    directory: "/"
+    patterns: ["*"]
+    multi-ecosystem-group: "all-dependencies"
+    open-pull-requests-limit: 2
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
+    cooldown:
+      default-days: 7