dependabot: fix ignoring substrate deps (#1588)

* dependabot: explicitly ignore substrate deps

* Indentation

* Revert to wildcards, move to cargo package

* Comments

* Fix update-types

* Formatting

.github/dependabot.yml

@@ -4,14 +4,14 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    # ignore Substrate pallets major updates.
+    # automated Substrate releases cause dependabot PR spam, so these must be updated manually when required.
+    ignore:
+      - dependency-name: "sp-*"
+        update-types: [ "version-update:semver-major" ]
+      - dependency-name: "pallet-*"
+        update-types: [ "version-update:semver-major" ]
   - package-ecosystem: github-actions
     directory: '/'
     schedule:
       interval: daily
-  - ignore:
-    - dependency-name: sp-*
-      versions:
-      - ">= 0"
-    - dependency-name: pallet-*
-      versions:
-      - ">= 0"