Authentication fail with Microsoft Entra ID

[ctecher]

Issue Description

Plugin dont't work since 1 month with error :
OAuth: An error occured during the request to the oauth provider: [HTTP 400]
dokuwiki\plugin\oauth\HttpTokenResponseException at /var/www/html/wikis/dokuwiki/lib/plugins/oauth/HTTPClient.php:28
#0 /var/www/html/wikis/dokuwiki/lib/plugins/oauth/vendor/lusitanian/oauth/src/OAuth/OAuth2/Service/AbstractService.php(117): dokuwiki\plugin\oauth\HTTPClient->retrieveResponse(Object(OAuth\Common\Http\Uri\Uri), Array, Array)
#1 /var/www/html/wikis/dokuwiki/lib/plugins/oauth/Adapter.php(231): OAuth\OAuth2\Service\AbstractService->requestAccessToken('1.ATwALZzmGrJh5...', NULL)
#2 /var/www/html/wikis/dokuwiki/lib/plugins/oauth/OAuthManager.php(68): dokuwiki\plugin\oauth\Adapter->checkToken()
#3 /var/www/html/wikis/dokuwiki/lib/plugins/oauth/OAuthManager.php(40): dokuwiki\plugin\oauth\OAuthManager->loginByService()
#4 /var/www/html/wikis/dokuwiki/lib/plugins/oauth/auth.php(45): dokuwiki\plugin\oauth\OAuthManager->continueFlow()
#5 /var/www/html/wikis/dokuwiki/inc/auth.php(102): auth_plugin_oauth->trustExternal('', '', false)
#6 /var/www/html/wikis/dokuwiki/inc/init.php(238): auth_setup()
#7 /var/www/html/wikis/dokuwiki/doku.php(38): require_once('/var/www/html/w...')
#8 {main}