log ingest error message body

Error messages like these are not very useful for troubleshooting especially if you do not own the pyroscope server.
```
[2024-08-12 23:36:40.305 | info | PId: 1 | TId: 16] PyroscopePprofSink 400
[2024-08-12 23:36:40.305 | info | PId: 1 | TId: 16] PyroscopePprofSink 422
```

The http response body should contain a useful error, like `name: invalid tag key: service.namespace: character is not allowed: '.'` or `pushing IngestInput-pprof failed invalid_argument: profile with labels '{__delta__=\"false\", __name__=\"wall\", deployment_environment=\"dev\", pyroscope_spy=\"dotnetspy\", service_name=\"webmvc\", service_name=\"webmvc\", service_namespace=\"eshop\"}' has duplicate label name`. Which we should include in the info log message to aid troubleshooting