CI: Add warning exemptions for Sun C (suncc-5.14) on Solaris 10

[tcpdump] / tests / dns_udp.out

    1  2020-06-10 09:19:54.740079 IP 192.168.1.11.43966 > 209.87.249.18.53: 22836+ [1au] A? www.tcpdump.org. (56)
    2  2020-06-10 09:19:54.870361 IP 209.87.249.18.53 > 192.168.1.11.43966: 22836*- 2/2/5 A 192.139.46.66, A 198.199.88.104 (224)