Changelog (v3.4.38...v3.4.39)

• bug [Validator] Assert Valid with many groups #36216 [Validator] Assert Valid with many groups (@phucwan91)
• bug [Console] Fix OutputStream for PHP 7.4 #36222 [Console] Fix OutputStream for PHP 7.4 (@guillbdx)
• bug [Security/Http] Remember me: allow to set the samesite cookie flag #36175 [Security/Http] Remember me: allow to set the samesite cookie flag (@dunglas)
• bug [Http Foundation] Fix clear cookie samesite #36173 [Http Foundation] Fix clear cookie samesite (@guillbdx)
• bug [Security] Check if firewall is stateless before checking for session/previous session #36176 [Security] Check if firewall is stateless before checking for session/previous session (@koenreiniers)
• bug [Form] Support customized intl php.ini settings #36149 [Form] Support customized intl php.ini settings (@jorrit)
• bug [Debug] fix for PHP 7.3.16+/7.4.4+ #36172 [Debug] fix for PHP 7.3.16+/7.4.4+ (@nicolas-grekas)
• bug Prevent warning in proc_open() #36141 Prevent warning in proc_open() (@BenMorel)
• bug [VarDumper] fix side-effect by not using mt_rand() #36121 [VarDumper] fix side-effect by not using mt_rand() (@nicolas-grekas)
• bug [PropertyAccess][DX] Improved errors when reading uninitialized properties #36073 [PropertyAccess][DX] Improved errors when reading uninitialized properties (@HeahDude)
• bug [FrameworkBundle] start session on flashbag injection #36063 [FrameworkBundle] start session on flashbag injection (@william Arslett)
• bug [Form] ignore microseconds submitted by Edge #36020 [Form] ignore microseconds submitted by Edge (@xabbuh)
• bug [Config] fix import from config file using type: glob #36041 fix import from config file using type: glob (@Tobion)
• bug [DoctrineBridge][DoctrineExtractor] Fix wrong guessed type for "json" type #35987 [DoctrineBridge][DoctrineExtractor] Fix wrong guessed type for "json" type (@fancyweb)
• bug [Form] Handle false as empty value on expanded choices #35938 [Form] Handle false as empty value on expanded choices (@fancyweb)
• bug [Yaml] fix dumping strings containing CRs #36004 [Yaml] fix dumping strings containing CRs (@xabbuh)
• bug [DI] Fix XmlFileLoader bad error message #35982 [DI] Fix XmlFileLoader bad error message (@przemyslaw-bogusz)
• bug Revert "bug symfony#28179 [DomCrawler] Skip disabled fields processing in Form" #35937 Revert "bug [DomCrawler] Fails in PHP7.2 for same name fields, different types #28179 [DomCrawler] Skip disabled fields processing in Form" (@dmaicher)
• bug [SecurityBundle] Minor fixes in configuration tree builder #35910 [SecurityBundle] Minor fixes in configuration tree builder (@HeahDude)