[libc++] Enable `mdspan::operator[]` constraint tests for AppleClang (#192475)
Although I couldn't find a corresponding AppleClang release note, this
issue appears to be fixed in AppleClang 16.
emulators/open-simh: update to 2026-04-13.
Changes (most recent first):
H316: Fix IMP host port 3 and 4 device addresses.
LINC: Add Visual Studio project files.
LINC: Fix test 31 and 35 on the diagnostics tape.
LINC: Diagnostics for classic LINC.
LINC: Test for teletype output.
LINC: New emulator for the classic LINC.
VIDEO: Accept the ISO "left backslash" key.
Services: Unbound DNS: Overrides - One of the major disadvantages of asking for domains and hostnames seperately is that standard fqdn validations don't apply, which is the case here. Adding a dot at the end of a fqdn is valid, having an empty element isn't. We fix the latter by preventing a hostname ending with a dot here. closes https://github.com/opnsense/core/issues/10170
