Update validator_derive requirement from 0.14 to 0.15

[dependabot[bot]]

Updates the requirements on validator_derive to permit the latest version.

Changelog

Sourced from validator_derive's changelog.

0.15.0 (2022/05/03)

• Allow passing args to schema validator
• Implement HasLen for map/set types
• Remove validator_types from validator crate
• Add ValidationErrors::errors_mut
• Ignore unsupported fields rather than erroring

0.14.0 (2021/06/29)

• Allow passing arguments to custom functions
• Better Display implementation
• Better parsing of schema validation function in derive

0.13.0 (2021/03/22)

• Allow multiple schema-level validations

0.12.0 (2020/11/26)

• Allow length and range validators to take a reference to a variable
• Make validator work with Option<Vec<_>>
• Support reference for length types
• Fix phone, unic and card feature to actually work

0.11.0 (2020/09/09)

• Add a derive feature so you don't need to add validator_derive to your Cargo.toml

0.10.1 (2020/06/09)

• Add a blanket Validate implementation for references
• Add Required and RequiredNested validators

0.10.0 (2019/10/18)

• Add non_control_characters validation

0.9.0 (2019/05/xx)

• ValidationErrors::errors and ValidationErrors::field_errors now use &self instead of self
• Move to edition 2018

0.8.0 (2018/09/19)

• Change error type to allow use with nested validation

0.7.1 (2018/07/27)

• Make validators work on Cow

... (truncated)

Commits

• 0d53b10 Prepare for 0.15 release
• 89919c9 Remove validator_types dep from main validator crate. (#206)
• e64a5ef Allow unsupported_field_type to be ignored (#189)
• 7e85875 Better support for maps (#203)
• 3161a85 add: ValidationErrors::errors_mut (#194)
• 329bcf9 Update Cargo.toml (#199)
• ae6c7dc Fix tests (#190)
• 53e944f Implementing schema arg validator (#181)
• 1b59f2e Implement HasLen for map/set types (#178)
• 47908fe allow any string value (#177)
• Additional commits viewable in compare view

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