Add core: 8.x in info file or set core_version_requirement from ^8.8

Problem/Motivation

The Drupal Core versions before 8.7.7 do not understand the core_version_requirement key in info file.

Steps to reproduce

Try installing the module in D8 versions < 8.7.7

Proposed resolution

Could solve the issue by any one of these methods

• Add core: 8.x to the info file
• Replace core_version_requirement to ^8.8 || ^9 || ^10

Better solution is the second one.

Details: https://www.drupal.org/docs/develop/creating-modules/let-drupal-know-abo... →