chore(next): release 4.0.0

[github-actions]

🤖 I have created a release beep boop

4.0.0 (2023-02-10)

⚠ BREAKING CHANGES

• drop qmllint support as it's superseded by qmlls
• drop qmllint 6.3.2 support

Features

• drop qmllint 6.3.2 support (d4d3343)
• drop qmllint support as it's superseded by qmlls (01bbbaf)
• provide quick fix with suggestions field from qmllint (a148ea7), closes #248
• support agb and agba color widget (14c3f96), closes #137
• support HEX color widget (76faae2), closes #137
• support hsl and hsla color widget (6411f26), closes #137
• support hsv and hsva color widget (13e6d79), closes #137
• support qmlls (0617762)
• support qmlls with e2e tests for configuration changes (87b49e1), closes #251
• use zod to validate qmllint result (67ea036)

Bug Fixes

• #248 (a148ea7)
• #251 (87b49e1)
• #260 (e9681e8)
• ensure the observable does not complete before the language client disposed (8ded538)

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