docs: Add a Meson version policy and bump Meson version in CI
Signed-off-by: Philip Withnall pwithnall@endlessos.org
Fixes: #2596 (closed)
This also pulls in the PCRE version bump from !2611 (closed) so that I don’t have to rebuild the CI images for it separately, and the meson.can_run_host_binaries()
change from !2544 (closed) to fix associated Meson warnings.
Edited by Philip Withnall