fix dead lock in source debugger

[xujuntwt95329]

No description provided.

[xujuntwt95329]

@eloparco This PR is based on your previous one: #1991
Could you help review it?

Thanks

[eloparco]

I ran the main branch locally and I could see the problem, with the lock already acquired in

wasm-micro-runtime/core/iwasm/interpreter/wasm_interp_classic.c

Line 1040 in 5c37ddf

os_mutex_lock(&exec_env->wait_lock); \

and then again in wasm_cluster_thread_waiting_run.

I hadn't tried the debugger since that PR so I didn't notice. Unfortunately, I don't think there is any simple way to automatically detect similar issues in the CI.

[eloparco]

LGTM

[xujuntwt95329]

@eloparco Thanks a lot!
Yes, there seems not an easy way to validate source debugger in CI.
A possible approach may be using lldb scripts, which can execute some commands without terminal input, the problem is how to validate the result of every command.