v2.4.0

LinearOperators v2.4.0

Diff since v2.3.3

Merged pull requests:

• Diagonal quasi-Newton operators (#237) (@Joshua-Wolff)
• run CI on Apple Silicon (#239) (@dpo)
• add FPS in breakage tests (#240) (@tmigot)
• remove unbound type parameters (#241) (@nsajko)
• Update CommentPR.yml (#243) (@amontoison)
• bump version to 2.4.0 (#244) (@dpo)