Fix teardown

Author: FrederikBolding

packages/snaps-controllers/coverage.json

@@ -1,6 +1,6 @@
 {
   "branches": 93.31,
-  "functions": 96.79,
-  "lines": 98.15,
-  "statements": 97.88
+  "functions": 97.05,
+  "lines": 98.2,
+  "statements": 97.93
 }

packages/snaps-controllers/src/services/webview/WebViewExecutionService.test.ts

@@ -49,6 +49,7 @@ describe('WebViewExecutionService', () => {
     });
 
     expect(service).toBeDefined();
+    await service.terminateAllSnaps();
   });
 
   it('can execute snaps', async () => {
@@ -117,5 +118,7 @@ describe('WebViewExecutionService', () => {
         endowments: [],
       }),
     ).toBe('OK');
+
+    await service.terminateAllSnaps();
   });
 });