Update non-direct dependencies to curve25519-dalek

[aramikm]

Description

Due to the recent timing variability issue discovered in https://rustsec.org/advisories/RUSTSEC-2024-0344, some libraries that are dependent on curve25519-dalek should be updated.

It looks like there are 3 versions of curve25519-dalek being directly and non-direclty used in polkadot-sdk.

curve25519-dalek v2.1.3 curve25519-dalek v3.2.0 curve25519-dalek v4.0.0

The patch for this issue is released in v4.1.3 and the direct dependency fix got merged into polkadot-sdk via this commit.

By looking into dependency tree there are still libraries such as ed25519-zebra, schnorrkel, libp2p and etc that are dependent on an older version of curve25519-dalek. All of these dependencies should get updates once the fix is incorporated into those crates and released.

Acceptence Criterea

• There should be no direct or indirect dependency on curve25519-dalek v4.1.2 or any version below.

[nazar-pc]

Most were already fixed in master, though curve25519-dalek-ng that is a fork of curve25519-dalek seems to have not received updates for years and not clear what useful changes you have on top of upstream and why it is still needed.