tools/7z: update to 24.05

Update to a more recent stable release.

Most notably, this version includes
some fixes for building on an OS like Alpine.
This allows for the removal of hacks
that fixed building on Alpine,
but broke building on ARM archs.

Manually adjust:
- 7-zip-flags.patch
- 7-zip-musl.patch

Link: https://7-zip.org/history.txt


Signed-off-by: Michael Pratt <mcpratt@pm.me>
Link: https://github.com/openwrt/openwrt/pull/15991


Signed-off-by: Robert Marko <robimarko@gmail.com>