Upgrade pinned vector dependencies 3.21

Upgrades PinnedVec for improved safety guarantees: https://github.com/orxfun/orx-pinned-vec/releases/tag/3.21.0

Also upgrades serde dependency.

Upgrade pinned vector dependencies

Merge pull request #47 from orxfun/upgrade-pinned-vec-3.18

upgrade pinned vec 3.18

Upgrade pinned vector dependencies

With new pinned vectors, it upgrades to latest concurrent iterator version, enabling new parallelization features.

Upgrade pinned vector dependencies

Upgrade to new pinned vector and concurrent collection versions.

2024edition

Migration to edition2024.

CI action is added.

Upgrade PseudoDefault dependency

Merge pull request #43 from orxfun/Upgrade-PseudoDefault-dependency

Upgrade PseudoDefault dependency

Dual license

Merge pull request #41 from orxfun/dual-license

dual license

Use-of-Collection-constrained-PinnedVecs

Upgrade pinned vectors to v3.12.

Feature "serde"

• Serialize & Deserialize are implemented for ConcurrentVec. The concurrent vector is represented as a regular sequence.
• These implementations are available only through opt-in feature "serde".
• Example usage can be found in the corresponding test file.

Upgrade PinnedVec dependencies

• PinnedVec dependencies are upgraded to the latest.
• New clippy warnings are fixed.