fix: use beforeAll instead of beforeEach (#3094)

* fix: use `beforeAll` instead of `beforeEach`

* fix: `clearAllMocks` -> `resetAllMocks`

Author: Dzeranov

packages/apps/reputation-oracle/server/src/modules/email/sendgrid.service.spec.ts

@@ -30,7 +30,7 @@ const spyOnIsDevelopmentEnv = jest
 describe('SendgridEmailService', () => {
   let service: SendgridEmailService;
 
-  beforeEach(async () => {
+  beforeAll(async () => {
     const module: TestingModule = await Test.createTestingModule({
       providers: [
         SendgridEmailService,
@@ -43,7 +43,7 @@ describe('SendgridEmailService', () => {
   });
 
   afterEach(() => {
-    jest.clearAllMocks();
+    jest.resetAllMocks();
   });
 
   describe('Initialization', () => {