Add dynamic URL resolution to Button Block

[getdave]

Once the Dynamic URL functionality we added in #71630 is considered stable in 6.9 (please check with @getdave) then we should also apply the same functionality to the button block.

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We should have a follow up to bring this behavior to the Button block if it doesn't exist already.

Originally posted by @mtias in #71630 (comment)

[Vrishabhsk]

Hi @getdave 👋

• I have raised the PR for implementing dynamic URL resolution for button block : Add/button dynamic url #74814
• The PR is still in its initial stage and will require some feedback to move forward.

Let me know your thoughts on it. Thanks