dusk-safe 0.4.0

Release of dusk-safe 0.4.0. This update includes breaking API changes listed below.

Fixed

• Read the Sponge::absorb input through a single as_ref call
• Wipe old output allocations before growth, including when continuing cloned sponges #37
• Return an error and invalidate the sponge when output allocation fails #37
• Wipe encryption/decryption temporary vectors on error and unwinding #37
• Permanently invalidate sponges after operation errors or explicit zeroization #37
• Reject IO patterns whose aggregated runs exceed the 31-bit encoding limit #37
• Reject sponge widths below two at construction #37
• Redact permutation state, buffered output and backend data from sponge debugging #37
• Reject empty ciphertext consistently in decrypt #35

Changed

• Simplify sponge finalization and IO-pattern validation
• Raise the MSRV to Rust 1.96.1 #32

Removed

• Remove PartialEq from Sponge #39

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