debugger: Fix gdb adapter and logger (#28280)

There were two bugs that caused the gdb adapter not to work properly,
one on our end and one their end.

The bug on our end was sending `stopOnEntry: null` in our launch request
when stop on entry had no value. I fixed that bug across all dap
adapters

The other bug had to do with python's "great" type system and how we
serialized our unit structs to json; mainly,
`ConfigurationDoneArguments` and `ThreadsArguments`. Gdb seems to follow
a pattern for handling requests where they pass `**args` to a function,
this errors out when the equivalent json is `"arguments": null`.

```py
@capability("supportsConfigurationDoneRequest")
@request("configurationDone", on_dap_thread=True)
def config_done(**args): ### BUG!!
    ...
```

Release Notes:

- N/A

crates/dap_adapters/src/go.rs

@@ -83,19 +83,25 @@ impl DebugAdapter for GoDebugAdapter {
     }
 
     fn request_args(&self, config: &DebugTaskDefinition) -> Value {
-        match &config.request {
+        let mut args = match &config.request {
             dap::DebugRequestType::Attach(attach_config) => {
                 json!({
                     "processId": attach_config.process_id,
-                    "stopOnEntry": config.stop_on_entry,
                 })
             }
             dap::DebugRequestType::Launch(launch_config) => json!({
                 "program": launch_config.program,
                 "cwd": launch_config.cwd,
-                "stopOnEntry": config.stop_on_entry,
                 "args": launch_config.args
             }),
+        };
+
+        let map = args.as_object_mut().unwrap();
+
+        if let Some(stop_on_entry) = config.stop_on_entry {
+            map.insert("stopOnEntry".into(), stop_on_entry.into());
         }
+
+        args
     }
 }