Add "updated …" pattern to the extractors

[alroythalus]

• check the results fot this site https://www.sofi.com/online-privacy-policy/#global-privacy-control
  expected: 2024-07-01

• https://www.tesla.com/legal/privacy
  expected: 2023-05-01

@adbar

[adbar]

Thanks for your feedback, this is tricky because the "updated" pattern is present in the free text and nowhere in the markup.