Adjust grouped updates config

 - Add the core `rollup` dep to the "rollup" group. It is maintained by
   the same GitHub org, but doesn't start with `@rollup/`

 - Add groups for `@types/` package. These are all sourced from the same
   organization.

 - Rename `lint` => `eslint`. This avoids ambiguity if copying this
   config into other repos that also use Python linters.

.github/dependabot.yml

@@ -10,13 +10,17 @@ updates:
       babel:
         patterns:
           - '@babel/*'
-      lint:
+      eslint:
         patterns:
           - 'eslint*'
           - '@typescript-eslint/*'
       rollup:
         patterns:
+          - 'rollup'
           - '@rollup/*'
       sentry:
         patterns:
           - '@sentry/*'
+      typescript-types:
+        patterns:
+          - '@types/*'