chore(imu_corrector): relax gyro bias threshold parameter (#6582)

Signed-off-by: Kotaro Yoshimoto <pythagora.yoshimoto@gmail.com>

Author: shmpwk

sensing/imu_corrector/config/gyro_bias_estimator.param.yaml

@@ -1,6 +1,6 @@
 /**:
   ros__parameters:
-    gyro_bias_threshold: 0.0015 # [rad/s]
+    gyro_bias_threshold: 0.003 # [rad/s]
     timer_callback_interval_sec: 0.5 # [sec]
     diagnostics_updater_interval_sec: 0.5 # [sec]
     straight_motion_ang_vel_upper_limit: 0.015 # [rad/s]