Just some more circular dep cleanup

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/config/report.api.md

@@ -3,7 +3,6 @@
 > Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
 
 ```ts
-import { Config as Config_2 } from '@backstage/config';
 import { HumanDuration } from '@backstage/types';
 import type { JsonArray as JsonArray_2 } from '@backstage/types';
 import { JsonObject as JsonObject_2 } from '@backstage/types';
@@ -85,7 +84,7 @@ export type JsonValue = JsonValue_2;
 
 // @public
 export function readDurationFromConfig(
-  config: Config_2,
+  config: Config,
   options?: {
     key?: string;
   },

packages/config/src/readDurationFromConfig.ts

@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-import { Config } from '@backstage/config';
 import { InputError, stringifyError } from '@backstage/errors';
 import { HumanDuration } from '@backstage/types';
 import ms from 'ms';
+import { Config } from './types';
 
 export const propsOfHumanDuration = [
   'years',