How to manually update the SPFX package for your Tenant

To update the SPFX package, please follow the steps below:

1. First, you will need to download the new version of the SPFX package. You can do it by following the link;
2. After this is done, please go to the App Catalog site under the Tenant Administrator account (Admin Center -> Admin centers in the left-side panel -> SharePoint -> apps -> App Catalog):

3. In the left-side menu, select Apps for SharePoint:

4. Click the Upload button and choose the new package:

5. Enable the option "Make this solution available to all sites in the organization":

After you click the OK button, the SPFX package will be overwritten by the latest version.