Ignore platform reqs when dumping the autoloader too

`composer install` was relaxed with --ignore-platform-reqs but the
following `composer dump-autoload -o` was not, so it could still abort on a
platform mismatch and bake a strict vendor/composer/platform_check.php. Pass
the flag to the dump step as well, in install-osx and self-update.php.

Assisted-by: Claude Code:claude-opus-4-8

Author: ahegyes

install-osx

@@ -1,7 +1,7 @@
 #!/bin/bash
 ulimit -n 8192
 composer install --ignore-platform-reqs
-composer dump-autoload -o
+composer dump-autoload -o --ignore-platform-reqs
 sudo mkdir -p /usr/local/bin
 script_path=$(pwd)
 sudo ln -sf "$script_path"/team51-cli.php /usr/local/bin/team51

self-update.php

@@ -163,6 +163,6 @@ function team51_cli_update_last_update_check_timestamp(): void {
 
 // Update Composer.
 team51_cli_run_system_command( sprintf( 'composer install --ignore-platform-reqs --working-dir %s --no-interaction', TEAM51_CLI_ROOT_DIR ) );
-team51_cli_run_system_command( sprintf( 'composer dump-autoload -o --working-dir %s --no-interaction', TEAM51_CLI_ROOT_DIR ) );
+team51_cli_run_system_command( sprintf( 'composer dump-autoload -o --ignore-platform-reqs --working-dir %s --no-interaction', TEAM51_CLI_ROOT_DIR ) );
 
 // endregion