chore(deps): group Dependabot minor/patch updates per ecosystem

Add a group to each update entry so weekly minor/patch bumps land as a
single PR per ecosystem/directory instead of one PR per package. Major
bumps remain individual PRs so breaking changes get isolated review.

Grouping takes effect when open-pull-requests-limit is raised above 0
(version updates are still paused during development, #109).

.github/dependabot.yml

@@ -5,73 +5,140 @@ updates:
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      infra:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: npm
     directory: /web
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      web:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: npm
     directory: /mobile
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      mobile-npm:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: bundler
     directory: /mobile
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      mobile-bundler:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: nuget
     directory: /api
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      api:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: pip
     directory: /lambdas/pdf-extract
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      pdf-extract:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: pip
     directory: /lambdas/pdf-generate
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      pdf-generate:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: pip
     directory: /lambdas/library-ingest
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      library-ingest:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: pip
     directory: /lambdas/suggestions
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      suggestions:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: pip
     directory: /lambdas/oss-index-creator
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
-
+    groups:
+      oss-index-creator:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
 
   - package-ecosystem: github-actions
     directory: /
     schedule:
       interval: weekly
     open-pull-requests-limit: 0
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"