chore: remove old ignores from dependabot config (#1771)

Author: czosel

.github/dependabot.yml

@@ -5,14 +5,3 @@ updates:
   schedule:
     interval: daily
   open-pull-requests-limit: 10
-  ignore:
-  - dependency-name: y18n
-    versions:
-    - 4.0.1
-    - 4.0.2
-  - dependency-name: rollup
-    versions:
-    - 2.40.0
-  - dependency-name: eslint-config-prettier
-    versions:
-    - 8.0.0