Symfony 7 support

• Add Symfony 7 support
• Drop Symfony 4 support

5.0.1

Merge pull request #52 from tacman/patch-1

add return type to getFunctions()

5.0.0

• Symfony 6 compatibility.
• Clean dependencies versions.
• Drop support old versions.
• Increase PHP Version.

4.0.0

Drop support for old versions (Symfony 3, PHP 5.6 & 7.0)

3.2.0

Compatibility with Symfony 5

3.1.0

Allow all available events

3.0.3

Remove deprecation message for Symfony 4.2

3.0.2

Fix bad format for series, vAxes options #23

3.0.1

#16

3.0.0

• Refactoring
• #15