debugger: Add args argument to debugger launch config (#27953)

This also fixes a bug where debug cargo test code actions would debug
all tests in a mod instead of a specific test

Release Notes:

- N/A

crates/dap_adapters/src/php.rs

@@ -118,6 +118,7 @@ impl DebugAdapter for PhpDebugAdapter {
                 json!({
                     "program": launch_config.program,
                     "cwd": launch_config.cwd,
+                    "args": launch_config.args,
                     "stopOnEntry": config.stop_on_entry,
                 })
             }