i2c_spi_buses.h: work around astyle version inconsistency

platforms/common/include/px4_platform_common/i2c_spi_buses.h

@@ -236,13 +236,15 @@ protected:
 
 	virtual ~I2CSPIDriver() = default;
 
-	void Run() final {
+	// *INDENT-OFF* remove once there's astyle >3.1 in CI
+	void Run() final
+	{
 		static_cast<T *>(this)->RunImpl();
 
-		if (should_exit())
+		if (should_exit()) {
-		{
 			exit_and_cleanup();
 		}
 	}
+	// *INDENT-ON*
 private:
 };