Update dependency email_validator to v1.3.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
email_validator	==1.1.2 -> ==1.3.1

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Release Notes

JoshData/python-email-validator (email_validator)

v1.3.1

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• The new SPF 'v=spf1 -all' (reject-all) deliverability check is removed in most cases. It now is performed only for domains that do not have MX records but do have an A/AAAA fallback record.

v1.3.0

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• Deliverability checks now check for 'v=spf1 -all' SPF records as a way to reject more bad domains.
• Special use domain names now raise EmailSyntaxError instead of EmailUndeliverableError since they are performed even if check_deliverability is off.
• New module-level attributes are added to override the default values of the keyword arguments and the special-use domains list.
• The keyword arguments of the public methods are now marked as keyword-only, ending support for Python 2.x.
• pyIsEmail's test cases are added to the tests.
• Recommend that check_deliverability be set to False for validation on login pages.
• Added an undocumented globally_deliverable option.

v1.2.1

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• example.com/net/org are removed from the special-use reserved domain names list so that they do not raise exceptions if check_deliverability is off.
• Improved README.

v1.2.0

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• Reject domains with NULL MX records (when deliverability checks
  are turned on).
• Reject unsafe unicode characters. (Some of these checks you should
  be doing on all of your user inputs already!)
• Reject most special-use reserved domain names with EmailUndeliverableError. A new test_environment option is added for using @*.test domains.
• Improved safety of exception text by not repeating an unsafe input character in the message.
• Minor fixes in tests.
• Invoking the module as a standalone program now caches DNS queries.
• Improved README.

v1.1.3

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• Allow passing a custom dns_resolver so that a DNS cache and a custom timeout can be set.

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[coveralls]

Coverage remained the same at 98.79% when pulling aa61505 on renovate/email_validator-1.x into 131a22a on master.