Merged #97 to fix PHP 8.4 compatibility issues.

• Update Github Actions workflows to test against PHP 8.2, too.
• Fix new Psalm issue
• Fix coding standard

• Fix PHP 8.1 deprecations
• Fix coding standard
• Fix Psalm issues

Make Json methods more flexible: now they accept also \Stringable objects.
See Pull request #78

• PR #73 : phootwork\file\File::write() method now throws an exception if try to write an existent file, if the file is not writable.
• PR #74 : fix static create() methods
• PR #75 : add getSize() method to phootwork\file\File class.
• PR #76 : add append() method to phootwork\file\File class.

Fix missing dependency (PR #68 ).

• Bump to PHP 8.0+ and introduce the new php functionalities, in particular union types and new string manipulation functions.
• Update dependencies
• Refactor Json library to use native php JsonException: it forces json_encode and json_decode to raise JsonException instead of old-style errors and remove our error wrapper
• Fix all Psalm issue to run it at level 1

• Fix issue #64
• Fix a minor bug in insert() method (pull request #65 )
• Update api.yml action. Since the official sami.phar can't be downloaded anymore from Sensiolabs server, we provide our own at this link https://github.com/cristianoc72/Sami/releases/download/v4.1.3/sami.phar

Fix https://github.com/little-core-labs/get-git-tag action version.

Fix draft release workflow.