fix: decrement borrowed_publisher_num before ros2 publish

[Koichi98]

Description

borrowed_publisher_numのデクリメントはros2 publishよりも前に行うことで、ros2 publish時に起きるシリアライゼーション等のメモリの確保が共有メモリ上に行われてしまうのを避けるようにしました。

Related links

How was this PR tested?

• sample application (required)
• Autoware (required)

Notes for reviewers

[github-actions]

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                           GCC Code Coverage Report
Directory: .
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File                                       Lines    Exec  Cover   Missing
------------------------------------------------------------------------------
src/agnocastlib/include/agnocast.hpp           2       2   100%   
src/agnocastlib/include/agnocast_executor.hpp
                                               1       0     0%   38
src/agnocastlib/include/agnocast_publisher.hpp
                                              35      27    77%   62,85-86,95-97,108-109
src/agnocastlib/include/agnocast_smart_pointer.hpp
                                              53      50    94%   77,80-81
src/agnocastlib/include/agnocast_topic_info.hpp
                                              13      13   100%   
src/agnocastlib/src/agnocast.cpp              82      15    18%   22,24,27,30,32-34,36,39,42,44-50,54-55,58-62,66-67,71-74,77,80,82-85,88,91,93-94,96-97,102,104-106,109-112,115,117-123,125,138-139,150-151,154-156,161
src/agnocastlib/src/agnocast_component_container.cpp
                                              12       0     0%   5,7-8,11-13,16,18-20,22-23
src/agnocastlib/src/agnocast_component_container_mt.cpp
                                              28       0     0%   7,11-12,14-16,18-20,22-24,26-28,30,32-33,35-37,40,42,44-46,48-49
src/agnocastlib/src/agnocast_executor.cpp
                                              86       0     0%   10,12,14-16,18-20,24,26,29,31-32,35-39,42-45,47-48,51-53,55-58,61-62,67,70,73,75-79,82,86-87,90-91,94,96-100,103,106,110-115,118,121-124,126-129,132,135-137,140,142,145,149-150,153-156,159,162,164-165
src/agnocastlib/src/agnocast_multi_threaded_executor.cpp
                                              51       0     0%   9,13,15-17,19-20,25-26,29-33,36,38-41,44,48,51,53-55,58-60,64,66-67,71,74,77,79-80,82-83,87-88,91,96,100,103-104,107,114-117,120
src/agnocastlib/src/agnocast_publisher.cpp
                                              84       7     8%   7,9,20,23,28,30,32-38,42-43,50,55,57-62,65-72,77,81-88,91-92,94-97,99-102,104,107-108,112-113,119,123-132,135-136,139,142,144-149,152
src/agnocastlib/src/agnocast_single_threaded_executor.cpp
                                              19       0     0%   10-12,16,18-21,24,28-30,33,35-37,40-42
src/agnocastlib/src/agnocast_smart_pointer.cpp
                                              20       0     0%   5,7-15,19,21-29
src/agnocastlib/src/agnocast_subscription.cpp
                                              91       9     9%   10,12-15,17,20,24,27-29,31,33,35,37-42,44-49,51,54-61,64-67,69,71,74,77,81-84,86-92,95-97,99-102,105,108,112-117,119-124,126,128,131,135-136,138-139
src/agnocastlib/src/agnocast_topic_info.cpp
                                              16       0     0%   12,16-17,20-24,28-31,34-37
src/agnocastlib/src/agnocast_utils.cpp        25      23    92%   48,50
------------------------------------------------------------------------------
TOTAL                                        618     146    23%
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