Upgrade deprecated actions/cache in workflow to v4

Upgraded actions/cache to v4 in accordance with notice of v1/v2 package closing down.

https://github.blog/changelog/2024-12-05-notice-of-upcoming-releases-and-breaking-changes-for-github-actions/#actions-cache-v1-v2-and-actions-toolkit-cache-package-closing-down

Update phpcs-tool to 9.1.0 with Hostnet-Level-1

• Updates phpcs-tool to 9.1.0 with Hostnet-Level-1

Lower required version for doctrine/orm to 2.7.4

• Lowers required version for doctrine/orm

Added php 8 support

Merge pull request #26 from nutama/php8

added php 8 support

Hotfix missing original entity

Since new entities are send from the PrePersist event, the
unit of work no longer marks them as scheduled for insert. Checking
the original for null will provide you with the same information
in a much more elegant way and fixes the problem of having no
original when using the STRATEGY_COPY_PREVIOUS.

version ^2.0.0 of the entity-tracker-component

• use version ^2.0.0 of the entity-tracker-component
• dropped support for php 5.5 and 5.4 since they are EOL
• phpunit 5.5
• test against lowest allowed dependencies in travis

PHP 7.0 Compatability

PHP 7.0 Compatability

Stable Release

The first stable release. Changelog compared to the last pre-release tag:

• Added documentation in README.md
• Changed license from EPL-1.0 to MIT

0.0.2: Merge pull request #3 from iltar/master

Locked the component to 0.*

Initial Release

Merge pull request #2 from iltar/master

Consistency updated with other component and added missing unit-test