[Bug Report][4.1.6] border-opacity should not be used for v-progress-linear

[Ratinax]

Environment

Vuetify Version: 4.1.6
Vue Version: 3.5.40
OS: Linux undefined (current)

Steps to reproduce

1. change border-opacity value to 1

Expected Behavior

Changin border-opacity should not make the progress linear not working

Actual Behavior

Changin border-opacity should not make fill the progress linear

Reproduction Link

https://play.vuetifyjs.com/#...

Other comments

I think it doesn't make sense that the css variable "border-opacity" defines the opacity background of v-progress-linear