[Bug] subscribeAsync and createProducerAsync return UnknownErrorCode when built using devtoolset-11

### Search before asking

- [X] I searched in the [issues](https://github.com/apache/pulsar-client-cpp/issues) and found nothing similar.

### Version

OS: CentOS 7
Pulsar C++ client: 3.1.2

### Minimal reproduce step

1. Install gcc 11.
```
yum install devtoolset-11
. /opt/rh/devtoolset-11/enable
```

2. Install the same dependencies as this Dockerfile:
https://github.com/apache/pulsar-client-cpp/blob/v3.1.2/pkg/rpm/Dockerfile

3. Build rpm using this spec file:
https://github.com/apache/pulsar-client-cpp/blob/v3.1.2/pkg/rpm/SPECS/pulsar-client.spec

4. Install pulsar client library.
```
rpm -ivh apache-pulsar-client*.rpm
```

### What did you expect to see?

#subscribeAsync and #createProducerAsync return ResultOk.

### What did you see instead?

#subscribeAsync and #createProducerAsync return UnknownErrorCode.
When I tried to output the value of return value, it returned unexpected values like 1915086316.

### Anything else?

When built using gcc-toolset-11 on Rocky Linux 8, #subscribeAsync and #createProducerAsync return ResultOk.

### Are you willing to submit a PR?

- [ ] I'm willing to submit a PR!

Reproduce the issue on CentOS 7 with devtoolset-11 using pkg/rpm/Dockerfile and pkg/rpm/SPECS/pulsar-client.spec. Trace subscribeAsync and createProducerAsync to determine why their returned values become UnknownErrorCode, then verify both return ResultOk with valid values in the reported build.

Written by the indexing model from the issue text.