chore(deps): tune dependabot policy for low-noise updates (#25)

Author: nedasvi

.github/dependabot.yml

@@ -2,16 +2,55 @@ version: 2
 updates:
   - package-ecosystem: "github-actions"
     directory: "/"
+    target-branch: "main"
     schedule:
       interval: "weekly"
-    open-pull-requests-limit: 10
+      day: "monday"
+      time: "09:00"
+      timezone: "Etc/UTC"
+    labels:
+      - "dependencies"
+    commit-message:
+      prefix: "chore(deps)"
+      include: "scope"
+    open-pull-requests-limit: 1
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - "version-update:semver-major"
   - package-ecosystem: "npm"
     directory: "/dashboard"
+    target-branch: "main"
     schedule:
       interval: "weekly"
-    open-pull-requests-limit: 10
+      day: "monday"
+      time: "09:00"
+      timezone: "Etc/UTC"
+    labels:
+      - "dependencies"
+    commit-message:
+      prefix: "chore(deps)"
+      include: "scope"
+    open-pull-requests-limit: 1
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - "version-update:semver-major"
   - package-ecosystem: "pip"
     directory: "/"
+    target-branch: "main"
     schedule:
       interval: "weekly"
-    open-pull-requests-limit: 10
+      day: "monday"
+      time: "09:00"
+      timezone: "Etc/UTC"
+    labels:
+      - "dependencies"
+    commit-message:
+      prefix: "chore(deps)"
+      include: "scope"
+    open-pull-requests-limit: 1
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - "version-update:semver-major"