[RELEASE] Add support for latest TER version

What's Changed

• [TASK] Switch the code style checks on CI to PHP 8.3 by @oliverklee in #75
• [TASK] Fix codestyle according to updated PHP-CS-Fixer ruleset by @eliashaeussler in #80
• [TASK] Add PHP 8.4 to test matrix by @eliashaeussler in #79
• [BUGFIX] Fix upload to TER by @bmack in #84
• [DOCS] Simplify workflow examply in README.md by @sbuerk in #83
• [FEATURE] Provide detailed error messages for ext_emconf.php validation by @eliashaeussler in #78
• [FEATURE] Support guides.xml in documentation version replacement by @eliashaeussler in #81

New Contributors

• @sbuerk made their first contribution in #83

Full Changelog: 1.6.0...1.7.0