Laravel composer change required PHP version

 https://stackoverflow.com/questions/65454412/root-composer-json-requires-php-7-3-but-your-php-version-8-0-0-does-not-satis

"require": {
    "php": ">=7.3",
    .....
},

Try to update this requirement to:

"require": {
    "php": "^7.3|^8.0",
    .....
},