chore(examples): enable `process-command-api` feature for the sidecar ex

examples/sidecar/src-tauri/Cargo.toml

@@ -11,7 +11,7 @@ tauri-build = { path = "../../../core/tauri-build", features = ["codegen"] }
 [dependencies]
 serde_json = "1.0"
 serde = { version = "1.0", features = [ "derive" ] }
-tauri = { path = "../../../core/tauri", features = ["shell-sidecar"] }
+tauri = { path = "../../../core/tauri", features = ["process-command-api", "shell-sidecar"] }
 
 [features]
 default = [ "custom-protocol" ]