Update packages (#333)

Remove the polyfills that are not needed anymore and update the following packages:

 - paragonie/constant_time_encoding updated from v2.6.3 to v3.0.0 major
   See changes: paragonie/constant_time_encoding@v2.6.3...v3.0.0
   Release notes: https://github.com/paragonie/constant_time_encoding/releases/tag/v3.0.0

 - paragonie/halite updated from v5.1.1 to v5.1.2 patch
   See changes: paragonie/halite@v5.1.1...v5.1.2
   Release notes: https://github.com/paragonie/halite/releases/tag/v5.1.2

 - paragonie/hidden-string updated from v2.0.0 to v2.2.0 minor
   See changes: paragonie/hidden-string@v2.0.0...v2.2.0
   Release notes: https://github.com/paragonie/hidden-string/releases/tag/v2.2.0

 - phpstan/phpdoc-parser updated from 1.28.0 to 1.29.0 minor
   See changes: phpstan/phpdoc-parser@1.28.0...1.29.0
   Release notes: https://github.com/phpstan/phpdoc-parser/releases/tag/1.29.0

 - roave/security-advisories updated from dev-latest@ddcd0a7 to dev-latest@99ba399
   See changes: Roave/SecurityAdvisories@ddcd0a7...99ba399

Author: spaze

site/composer.json

@@ -50,13 +50,9 @@
 	},
 	"replace": {
 		"nette/finder": "3.0",
-		"paragonie/random_compat": "9.99.99",
 		"paragonie/sodium_compat": "*",
 		"symfony/polyfill-ctype": "*",
 		"symfony/polyfill-mbstring": "*",
-		"symfony/polyfill-php73": "*",
-		"symfony/polyfill-php80": "*",
-		"symfony/polyfill-php81": "*",
 		"symfony/process": "*"
 	},
 	"require-dev": {