refactor: Replace fluvio-wasm-timer with wasmtimer for wasm timer support

[minghuaw]

tokio::time::Sleep and tokio::time::Interval (and thus their counterpart on wasm targets) are used to implement HeartBeat and IdleTimeout. This was accomplished previously with fluvio-wasm-timer for wasm targets, which however still uses parking_lot version "0.11" (after 4 years) and thus is subject to RUSTSEC-2024-0384. This PR replace fluvio-wasm-timer with wasmtimer, which is actively maintained and uses parking_lot version "0.12".

Related issue: #306

[Copilot]

Pull Request Overview

This PR refactors the timer support for WASM targets by replacing the deprecated fluvio-wasm-timer with wasmtimer and introducing new timer traits to abstract over platform‐specific timer implementations. Key changes include:

• Refactoring timer-related traits (Instant and Delay) and their implementations for both tokio and wasmtimer.
• Updating HeartBeat and IdleTimeout to work with the new generic timer abstraction.
• Adjusting dependency and workspace configurations across various Cargo.toml files to reflect the new timer library usage.

Reviewed Changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
fe2o3-amqp/src/util/mod.rs	Introduced new timer traits and generic IdleTimeout type; replaced fluvio-wasm-timer.
fe2o3-amqp/src/transport/mod.rs	Simplified error propagation in idle timeout handling.
fe2o3-amqp/src/connection/mod.rs	Removed redundant error transformation in frame sending.
fe2o3-amqp/src/connection/heartbeat.rs	Reworked heartbeat interval handling with a new Interval trait and stream implementation.
fe2o3-amqp/src/connection/builder.rs	Updated lifetime annotations.
Various Cargo.toml files	Updated dependency versions and workspace configurations for consistency.