[7.17] Upgrade express 4.19.2→4.21.0 (#192862) (#193130)

# Backport

This will backport the following commits from `main` to `7.17`:
- [Upgrade express 4.19.2→4.21.0
(#192862)](#192862)

<!--- Backport version: 8.9.8 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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express 4.19.2→4.21.0 (#192862)\n\n## Summary\r\n\r\nUpgrades `express`
from v4.19.2 to v4.21.0, and `@types/express` from\r\nv4.17.13 to
v4.17.21. This PR also moves the dev-only
dependency\r\n`@mswjs/http-middleware` into the `devDependencies`
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express 4.19.2→4.21.0 (#192862)\n\n## Summary\r\n\r\nUpgrades `express`
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express 4.19.2→4.21.0 (#192862)\n\n## Summary\r\n\r\nUpgrades `express`
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v4.17.21. This PR also moves the dev-only
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BACKPORT-->

---------

Co-authored-by: Elastic Machine <[email protected]>
Co-authored-by: kibanamachine <[email protected]>

package.json

@@ -531,7 +531,7 @@
     "@types/elasticsearch": "^5.0.33",
     "@types/enzyme": "^3.10.12",
     "@types/eslint": "^7.28.0",
-    "@types/express": "^4.17.13",
+    "@types/express": "^4.17.21",
     "@types/extract-zip": "^1.6.2",
     "@types/faker": "^5.1.5",
     "@types/fancy-log": "^1.3.1",

packages/kbn-pm/dist/index.js

@@ -46782,7 +46782,7 @@ var call = Function.prototype.call;
 var $hasOwn = Object.prototype.hasOwnProperty;
 var bind = __webpack_require__(439);
 
-/** @type {(o: {}, p: PropertyKey) => p is keyof o} */
+/** @type {import('.')} */
 module.exports = bind.call(call, $hasOwn);