remove and from hashSha256 error message and update related test

Author: jaissica12

src/roktManager.ts

@@ -344,7 +344,7 @@ export default class RoktManager {
             return await this.sha256Hex(normalizedValue);
         } catch (error) {
             const errorMessage = error instanceof Error ? error.message : String(error);
-            this.logger.error(`Failed to hashSha256 and returning undefined: ${errorMessage}`);
+            this.logger.error(`Failed to hashSha256, returning undefined: ${errorMessage}`);
             return undefined;
         }
     }

test/jest/roktManager.spec.ts

@@ -224,7 +224,7 @@ describe('RoktManager', () => {
 
             expect(result).toBeUndefined();
             expect(mockMPInstance.Logger.error).toHaveBeenCalledWith(
-                expect.stringContaining('Failed to hashSha256 and returning undefined: Hash failed')
+                expect.stringContaining('Failed to hashSha256, returning undefined: Hash failed')
             );
         });