getchangeinfo.js: use SAS datetime19. format (DDMMMYYYY:HH:MM:SS)
for SUBMITTED_ON_DTTM and REVIEWED_ON_DTTM, matching the real SAS
output. Use SUBMIT_STATUS_CD field name (not REVIEW_STATUS_ID)
to match the MPE_SUBMIT column name and getchangeinfo.sas output.
stage.cy.ts: add login step in beforeEach (the beforeAll logs out
after uploading the license, so each test needs to re-login).
Use loginAndUpdateValidKey(true) to force license upload.