tests: run on ipv4 to avoid CI failure

Otherwise we would get:

    ERROR:../tests/lib-net.c:162:test_net_wc_small_throttling:
    assertion failed (error == NULL): Could not listen on address ::1,
    port 42775: Error binding to address: Cannot assign requested
    address (g-io-error-quark, 0)

Related: Infrastructure/GitLab#313
Signed-off-by: Victor Toso <victortoso@gnome.org>
1 job for include-tests in 3 minutes and 27 seconds (queued for 28 minutes and 56 seconds)
latest
Status Job ID Name Coverage
  Test
passed #93495
build_stable

00:03:27