Update hosting_providers.json - add Misk.com

[nitinag]

Free & automated SSL

[bmw]

do you have any documentation about the TLS support misk.com provides its users? see https://github.com/certbot/website?tab=readme-ov-file#hosting-providers-list and in particular this text about what we're looking for here:

• for category, see descriptions here.
• for full/partial categories, one of the links provided should have evidence of being in that category.
• only one of tutorial, announcement, plan will show up, in that order.
  • partial should have tutorial.
  • full providers shouldn't need a tutorial to turn on https. an exception might include instructions of what to do if something goes wrong and the automatic https doesn't work.