fix(deps): update dependency express to ~4.21.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
express (source)	~4.19.0 -> ~4.21.0

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Release Notes

expressjs/express (express)

v4.21.0

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What's Changed

• Deprecate "back" magic string in redirects by @​blakeembrey in https://github.com/expressjs/express/pull/5935
• [email protected] by @​wesleytodd in https://github.com/expressjs/express/pull/5954
• fix(deps): [email protected] by @​wesleytodd in https://github.com/expressjs/express/pull/5951
• Upgraded dependency qs to 6.13.0 to match qs in body-parser by @​agadzinski93 in https://github.com/expressjs/express/pull/5946

New Contributors

• @​agadzinski93 made their first contribution in https://github.com/expressjs/express/pull/5946

Full Changelog: expressjs/express@4.20.0...4.21.0

v4.20.0

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==========

• deps: [email protected]
  • Remove link renderization in html while redirecting
• deps: [email protected]
  • Remove link renderization in html while redirecting
• deps: [email protected]
  • add depth option to customize the depth level in the parser
  • IMPORTANT: The default depth level for parsing URL-encoded data is now 32 (previously was Infinity)
• Remove link renderization in html while using res.redirect
• deps: [email protected]
  • Adds support for named matching groups in the routes using a regex
  • Adds backtracking protection to parameters without regexes defined
• deps: encodeurl@~2.0.0
  • Removes encoding of \, |, and ^ to align better with URL spec
• Deprecate passing options.maxAge and options.expires to res.clearCookie
  • Will be ignored in v5, clearCookie will set a cookie with an expires in the past to instruct clients to delete the cookie

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