fix: serialize only the adapter config, not the adapter spec

Signed-off-by: Lars Wirzenius <liw@liw.fi>

ci-broker.md

@@ -446,7 +446,6 @@ when I run ./env.sh cib --config broker.yaml process-events
 
 then stderr contains "RADICLE_NATIVE_CI="
 then stderr contains "foo: bar"
-then stderr contains "API_KEY: xyzzy"
 
 when I run cibtool --db ci-broker.db event list
 then stdout is empty

src/adapter.rs

@@ -120,7 +120,7 @@ impl Adapter {
     fn write_adapter_config(&self, tmpdir: &TempDir) -> Result<PathBuf, AdapterError> {
         let filename = tmpdir.path().join("adapter.yaml");
 
-        let yaml = serde_yml::to_string(self).map_err(AdapterError::AdapterConfigToYaml)?;
+        let yaml = serde_yml::to_string(&self.config).map_err(AdapterError::AdapterConfigToYaml)?;
         logger::adapter_temp_config(&filename, &yaml);
         std::fs::write(&filename, yaml.as_bytes()).map_err(AdapterError::AdapterConfigWrite)?;