Update von Contao 5.3 auf 5.7, PHP 8.4, Composer Update schlägt fehl

[ok99]

Ich habe eine Contao-Manager-Fehlermeldung.
Auf Contao 5.7 von Contao 5.3 upgedatet. Lief alles durch. Seite lief auch.
Dann von PHP 8.3 auf PHP 8.4 hochgestellt und Composer-Update durchgeführt.

Fehlermeldung dabei:

Installing dependencies from lock file
Verifying lock file contents can be installed on current platform.
Package operations: 0 installs, 9 updates, 0 removals
  - Downloading symfony/serializer (v8.0.15)
  - Downloading symfony/type-info (v8.1.0)
  - Downloading symfony/property-info (v8.1.4)
  - Downloading scheb/2fa-bundle (v8.6.1)
  - Downloading lcobucci/clock (3.6.0)
  - Downloading scheb/2fa-trusted-device (v8.6.1)
  - Downloading scheb/2fa-backup-code (v8.6.1)
  - Downloading doctrine/instantiator (2.1.0)
  - Downloading symfony/css-selector (v8.1.0)
    Failed to download symfony/type-info from dist: The "
https://codeload.github.com/symfony/type-info/legacy.zip/9f24df8a79781b9b9f030fea7dfd2f3bd1e7e7e7" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download symfony/css-selector from dist: The "
https://codeload.github.com/symfony/css-selector/legacy.zip/dc0e2be45c9b5588c82414f02ac574b4b986abcd" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download symfony/property-info from dist: The "
https://codeload.github.com/symfony/property-info/legacy.zip/d3b1ba3e69dd9fbfff3e00416d2fc60c600c599d" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download scheb/2fa-trusted-device from dist: The "
https://codeload.github.com/scheb/2fa-trusted-device/legacy.zip/1e43d2c6dc39ed08fc68657cbad0e386c481cb7f" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download scheb/2fa-backup-code from dist: The "
https://codeload.github.com/scheb/2fa-backup-code/legacy.zip/cf4251fcc24f4a39d1307d8bbfabecfbd21ed57b" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download scheb/2fa-bundle from dist: The "
https://codeload.github.com/scheb/2fa-bundle/legacy.zip/5427e46c4e3236af31ad25ba7deae63de197637f" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download lcobucci/clock from dist: The "
https://codeload.github.com/lcobucci/clock/legacy.zip/4cdd88f761e9be9095ccbedf3e08d61ae216c643" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download symfony/serializer from dist: The "
https://codeload.github.com/symfony/serializer/legacy.zip/2b3155cdb33e719d3f2d28c91d6e59aa888c35f2" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
    Failed to download doctrine/instantiator from dist: The "
https://codeload.github.com/doctrine/instantiator/legacy.zip/23da848e1a2308728fe5fdddabf4be17ff9720c7" file could not be downloaded (HTTP/2 429 )
    Source fallback is disabled. Not trying alternative sources.
In CurlDownloader.php line 532:
                                                                               
  The "
https://codeload.github.com/symfony/type-info/legacy.zip/9f24df8a79781  
  b9b9f030fea7dfd2f3bd1e7e7e7" file could not be downloaded (HTTP/2 429 )      
                                                                               
install [--prefer-source] [--prefer-dist] [--prefer-install PREFER-INSTALL] [--dry-run] [--download-only] [--dev] [--no-suggest] [--no-dev] [--no-security-blocking] [--no-blocking] [--no-autoloader] [--no-progress] [--no-install] [--audit] [--audit-format AUDIT-FORMAT] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--strict-psr-autoloader] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--] [<packages>...]
# Process terminated with exit code 100

" .... file could not be downloaded (HTTP/2 429 )" bedeutet doch "Too Many Requests".

Hat jemand eine Ahnung was da schief läuft?

DIe Seite läuft weiterhin unter PHP 8.4, aber das Compser-Update sollte ja trotzdem gemacht werden.

Vielen Dank!

[Spooky]

Versuche es später nochmal.