Do not block finality for "disabled" disputes (#3358) (#3385)

Backport for 1.7: https://github.com/paritytech/polkadot-sdk/pull/3358

Relevant Issues:
https://github.com/paritytech/polkadot-sdk/issues/3314 (connected to the
cause)
https://github.com/paritytech/polkadot-sdk/issues/3345 (solves)

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Co-authored-by: ordian <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: eskimor <[email protected]>