Update dependency SimpleBase to 5.6.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Confidence
SimpleBase	5.5.0 -> 5.6.0

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Release Notes

ssg/SimpleBase (SimpleBase)

v5.6.0

Compare Source

Improvements

• This release separately targets .NET 9 and .NET 10 along with .NET 8
• Remove dependency to System.Memory package
• Improve IPv6 Base85 encoding/decoding performance

Fixes

• Base58.TryDecodeCheck() now consistently returns version 0 in its output for failure cases
• Base32.DecodeUInt64() and Base32.TryDecodeUInt64() will now always decode correctly for smaller inputs
• Multiple bugs in Base85 IPv6 decoding have been addressed

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