Bug - ExpandableSection - truncating variant throws errors on rerender because of undefined containerRef

[mmuzikar]

Describe the problem
ExpandableSection in truncating variant throws errors in console on rerendering multiple components (ie. filtering a table), this is also an issue for the dev overlay as it produces a ton of errors

How do you reproduce the problem?
Provide steps to reproduce. A codesandbox demonstrating the problem is appreciated.

Expected behavior
The component should take in consideration that the containerRef might be undefined and not throw any errors in that case

[tlabaj]

@mmuzikar what version of PF react-core are you on. This issue should be fixed by this PR in 5.4 release #10718