test: bundle integration tests into one binary

host/tests/integration.rs

@@ -0,0 +1,4 @@
+// unused-crate-dependencies false positives
+#![expect(unused_crate_dependencies)]
+
+mod integration_tests;

host/tests/integration_tests/mod.rs

@@ -0,0 +1,2 @@
+mod python;
+mod rust;

host/tests/python.rs → host/tests/integration_tests/python.rs

@@ -1,6 +1,3 @@
-// unused-crate-dependencies false positives
-#![expect(unused_crate_dependencies)]
-
 use std::sync::Arc;
 
 use arrow::datatypes::{DataType, Field};

host/tests/add_one.rs → host/tests/integration_tests/rust.rs

@@ -1,6 +1,3 @@
-// unused-crate-dependencies false positives
-#![expect(unused_crate_dependencies)]
-
 use std::sync::Arc;
 
 use arrow::{