Update INSTALL.txt and hook_requirements() etc. with Drupal 11 platform requirements

Closes #3421175

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• c9133196...61ac8eb2 - 54 commits from branch project:11.x
• 1f3551cd - Install.txt for PHP and databases
• 29cba646 - update most constants

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• 29cba646...86b89313 - 43 commits from branch project:11.x
• 94a3c74c - Install.txt for PHP and databases
• 259a2a0e - update most constants
• 9e79bf7f - Removed unused jobs from .gitlab-ci

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added 2 commits

• 5469bc21 - Revert "update most constants"
• 3808fdf6 - Fix a remaining mysql 5.7

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• 8ff6ffd2 - try again

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• ffe2d67e - use default job

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added 188 commits

• ffe2d67e...fecffbff - 181 commits from branch project:11.x
• a5d8ac5d - Install.txt for PHP and databases
• 45b98253 - update most constants
• 33331ce0 - Removed unused jobs from .gitlab-ci
• 584887b9 - Revert "update most constants"
• 813744cc - try again
• 8c6bef62 - use default job
• 3a0b335b - constants

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added 100 commits

• 3a0b335b...65e7a1ef - 92 commits from branch project:11.x
• f90c535c - Install.txt for PHP and databases
• fc6851ef - update most constants
• d90ecc54 - Removed unused jobs from .gitlab-ci
• 3010454b - Revert "update most constants"
• a993fd01 - try again
• a6874544 - use default job
• 5f7df256 - constants
• 362e9150 - correct MARIADB_MINIMUM_VERSION

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resolved all threads

added 1 commit

• 685cb42b - Apply 1 suggestion(s) to 1 file(s)

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added 13 commits

• 685cb42b...1fbf9f5d - 2 commits from branch project:11.x
• 0665bc1c - 1 earlier commit
• 490fa99f - update most constants
• 4fb8b95b - Removed unused jobs from .gitlab-ci
• aac7c849 - Revert "update most constants"
• 1929d89b - try again
• 606e174c - use default job
• 6003c5c4 - constants
• b30a51ac - correct MARIADB_MINIMUM_VERSION
• e6022514 - Apply 1 suggestion(s) to 1 file(s)
• f2b29806 - Update doc links
• f5f1c903 - mysql_requirements

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added 3 commits

• 2639ecf4 - Revert "mysql_requirements"
• 8bc152d0 - default.settings.php
• 476f4b35 - tx_isolation

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• ec76b5c7 - Connection.php

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resolved all threads

resolved all threads

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• e9e43f34 - Apply MariaDB specific isolation query suggested by @alexpott

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