#3841 - Hotfix: Name change for CRA Response file (#3865)

Acceptance Criteria
- [x] Update CRA Response Integration job to search for new file name 
    - [x] [CRA Environment Code]BCSA#####.TXT
- [x] No change on request - confirmed with IMB CRA income verification
request file name can remain the same.

**Context:** 
DEV: ABCSA#####.TXT
TEST: ABCSA#####.TXT
PROD: PBCSA#####.TXT

**Current File Names for CRA Income:** 
- CCRA_REQUEST_${this.craConfig.environmentCode}${sequenceFile}.DAT
- /CCRA_RESPONSE_[\w]*\.txt/i

*note
Regex test

```
const environmentCode = 'A';
const regex = new RegExp(`[${environmentCode}]BCSA\\d{5}\\.TXT`, 'i');
const testString = 'ABCSA00001.TXT';

console.log(regex.test(testString)); // true
```

sources/packages/backend/libs/integrations/src/cra-integration/__mocks__/SshServiceMock.ts

@@ -4,10 +4,7 @@ import * as path from "path";
 import { SshService } from "@sims/integrations/services";
 import { FILE_DEFAULT_ENCODING } from "@sims/services/constants";
 
-const MOCKED_RESPONSE_FILES = [
-  "CCRA_RESPONSE_ABCSL00001.TXT",
-  "CCRA_RESPONSE_ABCSL00002.TXT",
-];
+const MOCKED_RESPONSE_FILES = ["ABCSA00001.TXT", "PBCSA00002.TXT"];
 
 const SshServiceMock = new SshService();
 

sources/packages/backend/libs/integrations/src/cra-integration/cra-income-verification.processing.service.ts

@@ -198,7 +198,10 @@ export class CRAIncomeVerificationProcessingService {
   async processResponses(): Promise<ProcessSftpResponseResult[]> {
     const remoteFilePaths = await this.craService.getResponseFilesFullPath(
       this.ftpResponseFolder,
-      /CCRA_RESPONSE_[\w]*\.txt/i,
+      new RegExp(
+        `${this.configService.craIntegration.environmentCode}BCSA\\d{5}\\.TXT`,
+        "i",
+      ),
     );
     const processFiles: ProcessSftpResponseResult[] = [];
     for (const remoteFilePath of remoteFilePaths) {