The `sync-stable-blocks.js` file is used to compile the contents of `require-dynamic-blocks.php`, which includes the PHP files required for dynamic Core blocks.
Since these files define PHP functions, `require_once` should be used instead of `require` to guard against fatal errors.
Follow up to [53688].
Props aristath, SergeyBiryukov, desrosj.
Fixes#56738. See #56179.
git-svn-id: https://develop.svn.wordpress.org/trunk@54406 602fd350-edb4-49c9-b593-d223f7449a82
Syncing stable blocks from the Gutenberg repository to wordpress-develop was a manual process, but it got automated with the script that runs together with syncing WordPress packages changed in the Gutenberg package.
Props zieladam.
Fixes#56179.
git-svn-id: https://develop.svn.wordpress.org/trunk@53688 602fd350-edb4-49c9-b593-d223f7449a82
