CCM-12591 example letter test data (#223)

* Update .gitleaksignore

added gitleaks ignore

* CCM-12591: change pdf

---------

Co-authored-by: Tim Ireland <tim.ireland@hscic.gov.uk>

Author: masl2

scripts/test-data/src/helpers/create_letter_helpers.ts

@@ -33,7 +33,7 @@ export async function createLetter(params: {
     targetFilename,
   );
 
-  const letter: Omit<Letter, "ttl" | "supplierStatus"> = {
+  const letter: Omit<Letter, "ttl" | "supplierStatus" | "supplierStatusSk"> = {
     id: letterId,
     supplierId,
     specificationId,
@@ -65,7 +65,7 @@ export function createLetterDto(params: {
     url,
   } = params;
 
-  const letter: Omit<Letter, "ttl" | "supplierStatus"> = {
+  const letter: Omit<Letter, "ttl" | "supplierStatus" | "supplierStatusSk"> = {
     id: letterId,
     supplierId,
     specificationId,