feat: provide form values as context for yup schema extending #4753

[catalin-bratu]

🔎 Overview

This PR improves the implementation from #{4753} by passing the context to yup when passing to form the validation schema.

Example:

    setup() {
      const validationSchema = yup.object({
        password: yup.string().required().min(3).label('Password'),
        confirmPassword: yup
          .string()
          .required()
          .oneOf([yup.ref('$password')])
          .label('Confirm Password'),
      });

      return {
        validationSchema,
      };
    },
    template: `
      <VForm  v-slot="{ errors }" :validation-schema="validationSchema">
        <Field id="password" name="password" type="password" />
        <span id="passwordErr">{{ errors.password }}</span>
        <Field id="confirmPassword" name="confirmPassword" type="password" />
        <span id="confirmPasswordErr">{{ errors.confirmPassword }}</span>
        <button>Validate</button>
      </VForm>

✔ Issues affected

extends #{4753}