ci(next): add Drupal 10.1 to CI test matrix

[JohnAlbin]

This pull request is for:

• examples/*
• modules/next
• packages/next-drupal
• starters/basic-starter
• starters/graphql-starter
• Other

GitHub Issue: #543

Describe your changes

Adds Drupal 10.1 to the GitHub test suite. I've also removed Drupal 9.5 since it is EOL. https://www.drupal.org/about/announcements/blog/drupal-9-is-end-of-life

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1 Ignored Deployment

Name	Status	Preview	Updated (UTC)
next-drupal	⬜️ Ignored (Inspect)		Dec 12, 2023 6:48pm

[JohnAlbin]

Drupal 10.1 tests are failing with:

There was 1 error:

1) Drupal\Tests\next\Kernel\Plugin\PathRevalidatorTest::testRevalidate
TypeError: Double\ResponseInterface\P2::getStatusCode(): Return value must be of type int, null returned