chore(deps): update dependency scpcorp/scprime to v1.8.0

This MR contains the following updates:

Package	Update	Change
scpcorp/ScPrime	minor	1.7.2 -> v1.8.0

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Release Notes

scpcorp/ScPrime

v1.8.0: Fork238650

Compare Source

This release includes hardfork set at a block height 238650. The changes are:

• Changing the mining algorithm from blake2b to blake2b with 1009 nonce.
• New ungift unlock hash, it allows SCP Corp to spend coins originally gifted to NebulousLabs.
• Script to run devnet and the changes needed to do so.

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