fix(hesai_ros_wrapper): demote calibration fallback message to WARN

[mojomex]

PR Type

• Improvement

Related Links

• TIER IV INTERNAL LINK -- internal discussion
• LiDAR info topic #243 -- this feature would rid us of the need to manage calibration files completely

Description

When Nebula runs without a live Hesai sensor, it will search for an already-downloaded calibration file. If that is not found, it will log a message which was previously at log level ERROR.
As quite a common workflow is to decode recorded packets on a different machine without this downloaded file, it is more reasonable to demote this to WARN.

After the warning is emitted, Nebula falls back to a sensor-specific, generic calibration file and continues operation.

With #243, calibration data could be recorded alongside /pandar_packets and replayed on any machine, making this file handling routine obsolete. Pointclouds could also be perfectly reproduced without any extra steps.

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[drwnz]

LGTM!

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (c53b4fd) to head (41303f5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
nebula_ros/src/hesai/hesai_ros_wrapper.cpp	0.00%	1 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (c53b4fd) and HEAD (41303f5). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (c53b4fd)	HEAD (41303f5)
total	2	0

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #244       +/-   ##
==========================================
- Coverage   26.11%   0.00%   -26.12%     
==========================================
  Files         101      88       -13     
  Lines        9213    7872     -1341     
  Branches     2212     939     -1273     
==========================================
- Hits         2406       0     -2406     
- Misses       6418    7872     +1454     
+ Partials      389       0      -389     

Flag	Coverage Δ
differential	0.00% <0.00%> (?)
total	?

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