build(deps): bump curve25519-dalek in the cargo group (#8625)

Bumps the cargo group with 1 update: [curve25519-dalek](https://github.com/dalek-cryptography/curve25519-dalek).


Updates `curve25519-dalek` from 4.1.2 to 4.1.3
- [Release notes](https://github.com/dalek-cryptography/curve25519-dalek/releases)
- [Commits](dalek-cryptography/curve25519-dalek@curve25519-4.1.2...curve25519-4.1.3)

---
updated-dependencies:
- dependency-name: curve25519-dalek
  dependency-type: indirect
  dependency-group: cargo
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -1041,16 +1041,15 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "4.1.2"
+version = "4.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a677b8922c94e01bdbb12126b0bc852f00447528dee1782229af9c720c3f348"
+checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
 dependencies = [
  "cfg-if 1.0.0",
  "cpufeatures",
  "curve25519-dalek-derive",
  "digest",
  "fiat-crypto",
- "platforms",
  "rustc_version 0.4.0",
  "serde",
  "subtle",
@@ -3071,12 +3070,6 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
-[[package]]
-name = "platforms"
-version = "3.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db23d408679286588f4d4644f965003d056e3dd5abcaaa938116871d7ce2fee7"
-
 [[package]]
 name = "plotters"
 version = "0.3.5"