Update changelog for `v6.5.6`
Update changelog for `v6.5.6`

skewedlines/Nativefier,jiahaog/Nativefier,faceair/nativefier-slack,jiahaog/Nativefier,pixel9/nativefier,gfpacheco/Nativefier,gfpacheco/Nativefier,skewedlines/Nativefier,zucher/nativefier,pixel9/nativefier,zucher/nativefier,jiahaog/Nativefier,zucher/nativefier,faceair/nativefier-slack,pixel9/nativefier,skewedlines/Nativefier,gfpacheco/Nativefier