chore(ci): correct formatting in Dependabot config

Author: ayushmanchhabra

.github/dependabot.yml

@@ -8,7 +8,7 @@ updates:
       gha:
         patterns:
           - "*"
-- package-ecosystem: "npm"
+  - package-ecosystem: "npm"
     directory: "."
     schedule:
       interval: "monthly"
@@ -17,7 +17,7 @@ updates:
       npm:
         patterns:
           - "*"
-- package-ecosystem: "pip"
+  - package-ecosystem: "pip"
     directory: "."
     schedule:
       interval: "monthly"