fix(test): set GODEBUG env in interop tests to avoid potential panics

[hanabi1224]

Summary of changes

To address #4636 (comment)

Hi! I'm the author of rust2go. Thank you for choosing rustgo! In out production environment we have validated its relibility.

One thing to note is that, remember to add GODEBUG=invalidptr=0,cgocheck=0 env when run it, otherwise there maybe panic invalid pointer found on stack in go side when it tries to grow the goroutine stack(related code). This env can also be added with golang code on init: os.Setenv("GODEBUG", ...).

For testing, it doesn't matter whether there is this environment variable or not. But if you use it to serve requests, remember to add it.

Changes introduced in this pull request:

Reference issue to close (if applicable)

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Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.