Update dependency phpmailer/phpmailer to v7.1.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
phpmailer/phpmailer	7.0.2 → 7.1.0

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Release Notes

PHPMailer/PHPMailer (phpmailer/phpmailer)

v7.1.0

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• Validate MessageDate before including it in headers.
• Minor feature: some common non-RFC date formats and DateTime instances are now automatically converted to the right format for MessageDate.
• Strip breaks from XMailer, ContentType, and CharSet properties.
• Strip breaks from username and password properties before use in POP3.
• Enforce strict checks on Encoding values.
• Ease BC IMAP issues by allowing the parseAddresses $useimap parameter to be false or null without triggering a deprecation warning.
• Updated Turkish and Norwegian translations.
• Test case cleanup and improvements by @​jrfnl.
• Fix crash if Mailer ended up empty.
• Use Ubuntu 24.04 for tests.

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DeepSource Code Review

We reviewed changes in 8c7f298...2a16aeb on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

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PR Report Card

Overall Grade

Security   Reliability   Complexity   Hygiene

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
PHP		May 15, 2026 4:25p.m.	Review ↗

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