Fix java code examples in README

[MichaelMorrisEst]

Fixes #3091

[juntao]

Hello, I am a code review bot on flows.network. Here are my reviews of code commits in this PR.

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Commit 6cd6f2b11735f87609f684da9aa019bf4754175a

This patch contains a significant refactoring of the Java code examples in the README file for a project related to running WebAssembly (Wasm) from Java.

Summary of changes:

• Introduction of vars fibWasmPath and funcName intended to improve readability and reduce hardcoding.
• Change in the use of loading file content into a byte array from an unshown loadFile method to Files.readAllBytes().
• Class WasmEdgeValue is replaced with Value.
• WasmEdgeAsync is replaced with Async.
• Several functions appear to be renamed to align more with Java naming conventions. For example: wasmEdge_AsyncWait becomes asyncWait, wasmEdge_AsyncGet() becomes get(), etc.
• Instructions on managing execution results and canceling operations are updated with the new function names.

Potential issues:

1. No corresponding changes in the actual Java code are provided in this patch. If these are only changes in the README, they might not reflect the codebase, leading to confusion.
2. If classes like WasmEdgeValue and WasmEdgeAsync are renamed, and this change is not limited to the README but reflected in the whole project, it may be a breaking change for projects that depend on this software.
3. New dependencies on java.nio.file.Files and java.nio.file.Paths classes are introduced. They should be checked for their compatibility in the project's target environments.

This pull request does lack a context to understand completely without the actual source code. Reviewing the actual code changes implementing these refactorings would be beneficial.

[dannypsnl]

It seems before this you need to fix the binding, from my check, the CI failed in a week.

[alabulei1]

Hi @MichaelMorrisEst ,

Can you please check out the CI tests? Thanks.