Bump github.com/likexian/whois from 1.14.4 to 1.15.1

[dependabot[bot]]

Bumps github.com/likexian/whois from 1.14.4 to 1.15.1.

Commits

• 8adbecd update go mod
• f92c187 Merge pull request #34 from csnitker-godaddy/master
• 8082fc7 Added integration test for SetDisableReferral
• 761ee92 Added option to disable referral lookup
• 30f9adf add option to disable stats
• d8796a0 change comment prefix to the %
• f1703c8 optimize check update
• fbac87f fixed update cache
• c57bc87 change whois refer orders
• 0bb0574 Merge pull request #32 from rissson/get-server-refer
• Additional commits viewable in compare view

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