Update well known strings

[masaori335]

It's time to compare the list of well-known strings and the HTTP Field Name Registry. https://www.iana.org/assignments/http-fields/http-fields.xhtml

I think we had a similar discussion about adding some strings from HTTP/2 & HPACK before.

[bryancall]

We also need to update the cache version when this happens or bad this will occur.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.

[masaori335]

Duplicated with #9636.