build(deps): bump curve25519-dalek from 4.1.2 to 4.1.3

[dependabot[bot]]

Bumps curve25519-dalek from 4.1.2 to 4.1.3.

Commits

• 5312a03 curve: Bump version to 4.1.3 (#660)
• b4f9e4d SECURITY: fix timing variability in backend/serial/u32/scalar.rs (#661)
• 415892a SECURITY: fix timing variability in backend/serial/u64/scalar.rs (#659)
• 56bf398 Updates license field to valid SPDX format (#647)
• 9252fa5 Mitigate check-cfg until MSRV 1.77 (#652)
• 1efe6a9 Fix a minor typo in signing.rs (#649)
• cc3421a Indicate that the rand_core feature is required (#641)
• 858c4ca Address new nightly clippy unnecessary qualifications (#639)
• 31ccb67 Remove platforms in favor using CARGO_CFG_TARGET_POINTER_WIDTH (#636)
• 19c7f4a Fix new nightly redundant import lint warns (#638)
• Additional commits viewable in compare view

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