chore(deps): update rust crate p256 to 0.13

[oxide-renovate]

This PR contains the following updates:

Package	Type	Update	Change
p256	workspace.dependencies	minor	0.11 -> 0.13

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Release Notes

RustCrypto/elliptic-curves (p256)

v0.13.2

Changed

• Enable pem feature by default (#​832)

Fixed

• Have serde feature enable primeorder/serde (#​851)

v0.13.1

Changed

• Bump primeorder to v0.13.1 (#​819)

Fixed

• Correct product definition for empty iterators (#​802)

v0.13.0

Added

• PrimeField constants/tests (#​730, #​737, #​738)
• const fn inversions for all field elements (#​736)

Changed

• FieldBytesEncoding trait impls (#​732)
• Update hash2curve implementations to new API (#​735)
• Impl Invert trait for Scalar types (#​741)
• Bump ecdsa dependency to v0.16 (#​770)
• Bump elliptic-curve dependency to v0.13 (#​770)
• Bump primeorder dependency to v0.13 (#​777)

Fixed

• Point compactabtility check (#​772)

v0.12.0

Added

• 32-bit scalar backend (#​636)
• alloc feature (#​670)
• Constructors for Scalar from u128 (#​709)

Changed

• Use generic curve arithmetic implementation from primeorder crate (#​631, #​716)
• Use U256 as the inner type for FieldElement (#​634)
• Update P-256 VOPRF test vectors (#​693)
• Use weak feature activation; MSRV 1.60 (#​701)
• Bump ecdsa dependency to v0.15 (#​713)

v0.11.1

Added

• Re-export low-level diffie_hellman function (#​556)
• Additional RFC6979 test vectors (#​591)

Changed

• Use a 4-bit window for scalar multiplication (#​563)
• invert(), sqrt(): replace exponentiations with addition chains (#​564)
• Use generic prime order formulas (#​602)

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