cast send: add `--bump-fee` flag that resends with iteratively increasing gas price

[Thegaram]

Component

Cast

Describe the feature you would like

I'm using cast send extensively in some scripts. Sometimes they fail with replacement transaction underpriced. I suggest having a flag that allows bumping the gas price automatically so that the script can replace the stuck transaction.

• Option A: --bump-fee. If the transaction encounters the above error, we try resending it with iteratively increasing gas price (e.g. +10%) until we succeed.
• Option B: --bump-fee <MAX_GAS_PRICE>. Same as above but provide an upper limit.

I can take a go at implementing this if you think this would be a useful feature.

Additional context

No response