DST change in Egypt is not taken into account (GMT+2 => GMT+3)

[robinfla]

Moment-timezone version which you use:

Version: 0.5.42

Note: many issues are resolved if you just upgrade to the latest version

Issue description:

Egypt has announced that they're bringing back DST starting from the last Friday of April this year: https://egyptianstreets.com/2023/03/01/egypt-brings-daylight-saving-time-back/

We've noticed that the moment package does not return the correct hour for dates after April 28th:
For instance:
moment('2023-05-24 18:20:00+00').tz('Africa/Cairo') will return 2023-05-24 20:20:00 instead of 2023-05-24 21:20:00

EDIT: I just saw that this was fixed recently: #1047
I'm digging a bit more to understand why it doesn't work for me and will close this issue if irrelevant, sorry for the noise.

EDIT 2: Turns out it was our frontend that hadn't updated moment to 0.5.42....our bad. Closing the issue