Consume core Penta updates: Card

[tlabaj]

Follow up to core issue patternfly/patternfly#6186

The following was done with core bump PR #10017

• disabled logic for raised variants in getSelectableModifiers
• removed application of isRounded modifier
• removed application of isFlat modifier
• disabled som unit test
• removed isRounded and isFlat from modifier example
• disabled failing integration test