chore(scorecard): migrate to Jest 30 (#3019)

Install Jest 30 peer dependencies as required by @backstage/cli 0.36.0 and fix test incompatibilities for Jest 30 and JSDOM 27.

Signed-off-by: Jon Koops <jonkoops@gmail.com>

Author: jonkoops

workspaces/scorecard/package.json

@@ -50,7 +50,12 @@
     "@backstage/e2e-test-utils": "^0.1.2",
     "@backstage/repo-tools": "^0.17.0",
     "@changesets/cli": "^2.27.1",
+    "@jest/environment-jsdom-abstract": "^30.3.0",
     "@playwright/test": "^1.56.1",
+    "@types/jest": "^30.0.0",
+    "@types/jsdom": "^27.0.0",
+    "jest": "^30.3.0",
+    "jsdom": "^27.1.0",
     "knip": "^5.27.4",
     "node-gyp": "^9.0.0",
     "prettier": "^2.3.2",

workspaces/scorecard/plugins/scorecard/src/api/ScorecardApiClient.test.ts

@@ -188,7 +188,7 @@ describe('ScorecardApiClient', () => {
       });
 
       await expect(client.getAggregatedScorecard('myKpi')).rejects.toThrow(
-        TypeError,
+        'Invalid response format from aggregated scorecard API',
       );
     });
 
@@ -199,7 +199,7 @@ describe('ScorecardApiClient', () => {
       });
 
       await expect(client.getAggregatedScorecard('myKpi')).rejects.toThrow(
-        TypeError,
+        'Invalid response format from aggregated scorecard API',
       );
     });
 
@@ -290,7 +290,7 @@ describe('ScorecardApiClient', () => {
       });
 
       await expect(client.getAggregationMetadata('myKpi')).rejects.toThrow(
-        TypeError,
+        'Invalid response format from aggregation metadata API',
       );
     });