Release v1.5.1

[msimerson]

• feat(is_local_host): also match when...
  • the mx dest is a hostname that matches our hostname
  • the mx dest matches our public IP (may not be locally bound)
• bump dep versions #78
• test update for node v20 #78
• ci: enable CI tests on PRs #77
• test: increase DNS timeouts from 3s to 5s #77

[github-actions[bot]]

Pull Request Test Coverage Report for Build 7081076860

• 25 of 25 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.4%) to 89.927%

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Totals
Change from base Build 5263543190:	0.4%
Covered Lines:	463
Relevant Lines:	513

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💛 - Coveralls