fix(vehicle_cmd_gate): auto mode check

[TakaHoribe]

Description

Fix the condition for the autonomous mode check

Tests performed

tested on a real vehicle

Effects on system behavior

Behavior is improved when "autoware control is off but still operation mode is in AUTONOMOUS".

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (4e1cd2c) 14.17% compared to head (e4f8153) 14.18%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4333   +/-   ##
=======================================
  Coverage   14.17%   14.18%           
=======================================
  Files        1601     1601           
  Lines      110209   110148   -61     
  Branches    31606    31580   -26     
=======================================
- Hits        15624    15620    -4     
+ Misses      77598    77552   -46     
+ Partials    16987    16976   -11     

Flag	Coverage Δ		*Carryforward flag
differential	19.12% <0.00%> (?)
total	14.18% <ø> (+<0.01%)	⬆️	Carriedforward from 4e1cd2c

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...ontrol/vehicle_cmd_gate/src/vehicle_cmd_filter.hpp	77.77% <0.00%> (-9.73%)	⬇️
control/vehicle_cmd_gate/src/vehicle_cmd_gate.cpp	0.28% <0.00%> (-0.01%)	⬇️
...oc_common/src/ground_server/ground_server_core.cpp	0.00% <ø> (ø)
..._common/src/ll2_decomposer/ll2_decomposer_core.cpp	0.00% <ø> (ø)
...processing/graph_segment/similar_area_searcher.hpp	0.00% <ø> (ø)
...essing/src/graph_segment/similar_area_searcher.cpp	0.00% <ø> (ø)
...cessing/src/segment_filter/segment_filter_core.cpp	0.00% <ø> (ø)
...amera_corrector/camera_particle_corrector_core.cpp	0.00% <ø> (ø)
.../yabloc/yabloc_particle_filter/src/common/mean.cpp	0.00% <ø> (ø)
...ticle_filter/src/correction/abstract_corrector.cpp	0.00% <ø> (ø)
... and 17 more

... and 1 file with indirect coverage changes

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