core_version_requirement does not list Drupal 9

RNG does not seem to be installable on Drupal 9 due to missing core_version_requirement in rng.info.yml.

Changing the core_version_requirement to

core_version_requirement: ^8.8.4 || ^9

seems to fix the problem.

Same goes for rng_views/rng_views.info.yml and rng_debug/rng_debug.info.yml

diff --git a/rng.info.yml b/rng.info.yml
index 8b96054..f64b733 100644
--- a/rng.info.yml
+++ b/rng.info.yml
@@ -2,7 +2,7 @@ name: RNG
type: module
description: 'Provides the ability to create and manage events and registrations.'
package: RNG
-core_version_requirement: ^8.8.4
+core_version_requirement: ^8.8.4 || ^9
dependencies:
- drupal:system (>=8.1)
- dynamic_entity_reference:dynamic_entity_reference
diff --git a/rng_debug/rng_debug.info.yml b/rng_debug/rng_debug.info.yml
index 33981ba..843d49d 100644
--- a/rng_debug/rng_debug.info.yml
+++ b/rng_debug/rng_debug.info.yml
@@ -2,6 +2,6 @@ name: RNG Debug
type: module
description: 'Debug event settings.'
package: RNG
-core_version_requirement: ^8.8.4
+core_version_requirement: ^8.8.4 || ^9
dependencies:
- rng
diff --git a/rng_views/rng_views.info.yml b/rng_views/rng_views.info.yml
index 95b2f20..c8d4b0a 100644
--- a/rng_views/rng_views.info.yml
+++ b/rng_views/rng_views.info.yml
@@ -2,7 +2,7 @@ name: RNG Views
type: module
description: 'Improved Views integration for RNG.'
package: RNG
-core_version_requirement: ^8.8.4
+core_version_requirement: ^8.8.4 || ^9
dependencies:
- rng
- views