Parser: Mention strict: false in OmittedClosingTagError message

[marcoroth]

- Element `<%s>` at (%u:%u) has its closing tag omitted. While valid HTML, consider adding an explicit `</%s>` closing tag at (%u:%u) for clarity.
+ Element `<%s>` at (%u:%u) has its closing tag omitted. While valid HTML, consider adding an explicit `</%s>` closing tag at (%u:%u) for clarity, or set `strict: false` to allow this.

[pkg-pr-new]

npx https://pkg.pr.new/@herb-tools/formatter@1189

npx https://pkg.pr.new/@herb-tools/language-server@1189

npx https://pkg.pr.new/@herb-tools/linter@1189

commit: 98a1161

[github-actions]

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_{🌱 Grown from commit 98a1161}

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✅ Preview deployment has been cleaned up.