Update linter to run on rolling+focal

[emersonknapp]

No description provided.

[codecov]

Codecov Report

Merging #81 (dd2577b) into master (9c57688) will decrease coverage by 23.32%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master      #81       +/-   ##
===========================================
- Coverage   48.08%   24.75%   -23.33%     
===========================================
  Files        1512       27     -1485     
  Lines       41806      820    -40986     
  Branches    18500      185    -18315     
===========================================
- Hits        20102      203    -19899     
+ Misses       5404      454     -4950     
+ Partials    16300      163    -16137     

Flag	Coverage Δ
unittests	24.75% <ø> (-23.33%)	⬇️

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Impacted Files	Coverage Δ
...ollector/collector/generate_statistics_message.cpp
...tics_collector/moving_average_statistics/types.cpp
...rc/libstatistics_collector/collector/collector.cpp
...ector/moving_average_statistics/moving_average.hpp
...rc/libstatistics_collector/collector/collector.cpp
...tatistics_collector/topic_statistics_collector.hpp
...ector/moving_average_statistics/moving_average.cpp
...s_collector/test/benchmark/benchmark_iterative.cpp
...ector/moving_average_statistics/moving_average.cpp
...statistics_collector/test_received_message_age.cpp
... and 1505 more

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