chore(deps): update dependency scpcorp/scprime to v1.8.4

This MR contains the following updates:

Package	Update	Change
scpcorp/ScPrime	patch	v1.8.0 -> v1.8.4

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Release Notes

scpcorp/ScPrime (scpcorp/ScPrime)

v1.8.4

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• Delay host module loading until consensus is synced
• Functions needed for SCP<->SPF swaps

v1.8.3

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• Fixes SPF-B claims calculation when no contracts are formed in a block Other changes:
• Removes Siamux, ephemeral accounts and related fingerprintbuckets from host module
• Use golang 1.19 or newer for builds

This is a mandatory version upgrade release, contains fix in consensus rules. Versions prior to 1.8.3 are incompatible starting with block 247900

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