chore: Clean-up missing imports for tests (#505)

Noticed had missing imports in tests, this adds them and orders imports consistently. Not sure why eslint missed this.

sources/test/jest/dependency-graph.test.ts

@@ -1,4 +1,6 @@
-import { DependencyGraphConfig } from "../../src/configuration" 
+import {describe, expect, it} from '@jest/globals'
+
+import {DependencyGraphConfig} from "../../src/configuration" 
 
 describe('dependency-graph', () => {
     describe('constructs job correlator', () => {