build(deps-dev): update symfony/mailer requirement from ^7.0 to ^7.0 || ^8.0

[dependabot]

Updates the requirements on symfony/mailer to permit the latest version.

Release notes

Sourced from symfony/mailer's releases.

v8.0.8

Changelog (symfony/mailer@v8.0.7...v8.0.8)

• no significant changes

Changelog

Sourced from symfony/mailer's changelog.

CHANGELOG

8.0

• Remove TransportFactoryTestCase, extend AbstractTransportFactoryTestCase instead

7.4

• Add logger (constructor) property to RoundRobinTransport

7.3

• Add DSN param retry_period to override default email transport retry period
• Add Dsn::getBooleanOption()
• Add DSN param source_ip to allow binding to a (specific) IPv4 or IPv6 address.
• Add DSN param require_tls to enforce use of TLS/STARTTLS
• Add DkimSignedMessageListener, SmimeEncryptedMessageListener, and SmimeSignedMessageListener

7.2

• Deprecate TransportFactoryTestCase, extend AbstractTransportFactoryTestCase instead

  The testIncompleteDsnException() test is no longer provided by default. If you make use of it by implementing the incompleteDsnProvider() data providers, you now need to use the IncompleteDsnTestTrait.

• Make TransportFactoryTestCase compatible with PHPUnit 10+

• Support unicode email addresses such as "dømi@dømi.example"

7.1

• Dispatch Postmark's "406 - Inactive recipient" API error code as a PostmarkDeliveryEvent instead of throwing an exception
• Add DSN param auto_tls to disable automatic STARTTLS
• Add support for allowing some users even if recipients is defined in EnvelopeListener

7.0

• Remove the OhMySmtp bridge in favor of the MailPace bridge

6.4

• Add DSN parameter peer_fingerprint to verify TLS certificate fingerprint
• Change the default port for the mailjet+smtp transport from 465 to 587

... (truncated)

Commits

• ca5f6ed Merge branch '7.4' into 8.0
• f6ea532 Configure deprecation triggers
• a8971c8 Merge branch '7.4' into 8.0
• b02726f Merge branch '6.4' into 7.4
• 01b846f [Mailer] Clarify the purpose of SentMessage's "message id" concept
• a4ea1ef Merge branch '7.4' into 8.0
• 725d290 use PHPUnit 13 on PHP 8.4+
• a074d35 Merge branch '7.4' into 8.0
• 7b75007 Merge branch '7.3' into 7.4
• 08a5b01 do not use createMock() to create non-mock objects
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot]

Labels

The following labels could not be found: composer, dependencies. Please create them before Dependabot can add them to a pull request.

Please fix the above issues or remove invalid values from dependabot.yml.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.