Dev: v4.4.0 release

[kenjis]

TODO (newest first)

• docs: changelog and upgrade for v4.4.1 #7863
• announce the release on the forums and Slack channel
• docs: update RELEASE.md #7856
• create label 4.5 https://github.com/codeigniter4/CodeIgniter4/labels/4.5
• create 4.5 branch https://github.com/codeigniter4/CodeIgniter4/tree/4.5
• create release https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.4.0
• 4.4.0 Ready code (again) #7857
• Dev: Deploy Distributable Repos failed #7854
• create release → failed
• 4.4.0 Ready code #7853
• Prep for 4.4.0 release #7852
• Merge 4.4 into develop #7851

---

• v4.3.8 release #7842

---

• [4.4] docs: improve description for Factories BC #7840
• [4.4] update cs and add missing @return #7841
• fix: set_checkbox() checks unchecked checkbox #7818
• fix: filter except empty #7823
• feat: [Factories] Config caching #7696
• fix: instances of Validation rules are incremented each time run() is executed #7815
• rework: URI creation and URL helper #7282
• fix: Model inserts cast $primaryKey value when using Entity #7806
• refactor: move callExit() to index.php #7800

[kenjis]

Oh, I accidentally clicked on the item "v4.3.8 release" in the list, the new issue #7842 was created.

[kenjis]

Deploy Distributable Repos failed.See #7854

So I deleted the v4.4.0 relase in this repo. Because the framework repo is not updated, so v4.4.0 is not released officially.

[kenjis]

And deleted the tag.

$ git tag -d v4.4.0 
Deleted tag 'v4.4.0' (was 21ebc4dbbb)

$ git push origin --delete v4.4.0
To github.com:codeigniter4/CodeIgniter4.git
 - [deleted]               v4.4.0