t5608, t7508: require LONG_IS_64BIT for >4GB tests #28033

Job	Run time
config	8s
fuzz smoke test	1m 20s
win build	5m 24s
rust-analysis	1m 39s
win+VS build	0s
win+Meson build	4m 57s
documentation	7m 57s
sparse	3m 31s
static-analysis	3m 40s
linux-reftable (ubuntu:rolling)	28m 3s
osx-reftable (macos-14)	28m 34s
osx-meson (macos-14)	44m 49s
osx-gcc (macos-14)	6h 0m 19s
osx-clang (macos-14)	6h 0m 19s
linux-asan-ubsan (ubuntu:rolling)	6h 0m 5s
linux-musl-meson (alpine:latest)	23m 39s
fedora-breaking-changes-meson (fedora:latest)	17m 52s
linux-TEST-vars (ubuntu:20.04)	23m 52s
linux-breaking-changes (ubuntu:rolling)	28m 14s
linux-leaks (ubuntu:rolling)	49m 7s
linux32 (i386/ubuntu:focal)	6h 0m 4s
debian-11 (debian:11)	25m 15s
linux-reftable-leaks (ubuntu:rolling)	47m 20s
almalinux-8 (almalinux:8)	18m 1s
linux-meson (ubuntu:rolling)	25m 25s
linux-sha256 (ubuntu:rolling)	28m 32s
win+VS test	0s
win+Meson test (2)	59m 50s
win+Meson test (5)	7m 46s
win+Meson test (0)	6m 29s
win+Meson test (1)	9m 56s
win+Meson test (6)	13m 25s
win+Meson test (8)	8m 29s
win+Meson test (9)	6m 40s
win+Meson test (4)	7m 1s
win+Meson test (7)	7m 24s
win+Meson test (3)	9m 28s
win test (2)	10m 36s
win test (3)	57m 52s
win test (4)	8m 41s
win test (7)	6m 24s
win test (6)	6m 28s
win test (8)	6m 46s
win test (0)	8m 32s
win test (9)	9m 38s
win test (1)	5m 31s
win test (5)	9m 11s
	1d 11h 24m 13s

Provide feedback