Update dependency constraints (#1084)

Update constraint

Merge pull request #1047 from cakephp/5.x-cleanup

clear up table class fallback usage

Merge pull request #1030 from mentisy/debugkit-config

Add description to DebugKit configuration options

Merge pull request #1019 from cakephp/ADmad-patch-1

Avoid unintentional jump to new core minor.

Merge pull request #1017 from cakephp/phpunit-deprecation

Fix phpunit deprecation warning

Merge pull request #1011 from cakephp/dereuromark-patch-1

Utf8mb4 by default

Bump version again.

Merge pull request #971 from cakephp/5.x-plugins-config

5.x: use plugin loading via configuration array

Update constraints to what will be stable versions.