build(deps): bump Externals/cryptopp from `78a64e3` to `efbab52`

Created by: dependabot[bot]

Bumps Externals/cryptopp from 78a64e3 to efbab52.

Commits

• efbab52 Update documentation for pubkey.h (PR #1075)
• 131fdc1 Avoid word ops for Integer And, Or, Xor
• 5331e36 Optimize Integer bit operations fix (GH #1072)
• 43e7c2c Remove CRYPTOPP_NO_UNALIGNED_ACCESS test from cryptest.sh
• 4adfcd2 Fix undersized SecBlock buffer in Integer bit operations (GH #1072)
• 101d226 Add additional Integer bitops tests
• f80fee7 Update documentation
• 72237f9 Update documentation
• d6322a8 Whitespace check-in
• b41f1f0 Add O_NOFOLLOW when available in OS rngs
• Additional commits viewable in compare view

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