test/system: fix pasta host.containers.internal test

When a system has one ipv4 and one ipv6 address hostname -I will show
both causing a failure in the case where this is only one address.
To fix this stop using hostname -I and use ip -4 to only list v4
addresses and the use jq to filter the output accordingly.

Fixes #23227

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

test/system/505-networking-pasta.bats

@@ -800,6 +800,7 @@ EOF
 @test "pasta/bridge and host.containers.internal" {
     skip_if_no_ipv4 "IPv4 not routable on the host"
     pasta_ip="$(default_addr 4)"
+    host_ips=$(ip -4 -j addr | jq -r '.[] | select(.ifname != "lo") | .addr_info[].local')
 
     for network in "pasta" "bridge"; do
         # special exit code logic needed here, it is possible that there is no host.containers.internal
@@ -808,17 +809,17 @@ EOF
         run_podman '?' run --rm --network=$network $IMAGE grep host.containers.internal /etc/hosts
         if [ "$status" -eq 0 ]; then
             assert "$output" !~ "$pasta_ip" "pasta host ip must not be assigned ($network)"
-            assert "$(hostname -I)" =~ "$(cut -f1 <<<$output)" "ip is one of the host ips ($network)"
+            assert "$host_ips" =~ "$(cut -f1 <<<$output)" "ip is one of the host ips ($network)"
         elif [ "$status" -eq 1 ]; then
             # if only pasta ip then we cannot have a host.containers.internal entry
             # make sure this fact is actually the case
-            assert "$pasta_ip" == "$(hostname -I | tr -d '[:space:]')" "pasta ip must the only one one the host ($network)"
+            assert "$pasta_ip" == "$host_ips" "pasta ip must the only one one the host ($network)"
         else
             die "unexpected exit code '$status' from grep or podman ($network)"
         fi
     done
 
-    host_ip=$(hostname -I | cut -f 1 -d " ")
+    first_host_ip=$(head -n 1 <<<"$host_ips")
     run_podman run --rm --network=pasta:-a,169.254.0.2,-g,169.254.0.1,-n,24 $IMAGE grep host.containers.internal /etc/hosts
-    assert "$output" =~ "^$host_ip" "uses host first ip"
+    assert "$output" =~ "^$first_host_ip" "uses host first ip"
 }