Fix arm builds

[nkoenig]

Signed-off-by: Nate Koenig [email protected]

🦟 Bug fix

Summary

ARM doesn't allow narrowing conversions inside {} initializers. See here: https://build.osrfoundation.org/job/gz-common5-debbuilder/786/consoleFull#3015109326ea37b8d-a6d4-40ae-8431-d90c018842af

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

Merging #462 (8fe74e2) into gz-common5 (5c74a63) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           gz-common5     #462   +/-   ##
===========================================
  Coverage       80.60%   80.60%           
===========================================
  Files              90       90           
  Lines           10235    10237    +2     
===========================================
+ Hits             8250     8252    +2     
  Misses           1985     1985           

Impacted Files	Coverage Δ
io/src/CSVStreams.cc	92.15% <100.00%> (+0.15%)	⬆️

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[hidmic]

LGTM, thanks for the fix @nkoenig !