COMP: Fix MacOS CI: ld: warning: ignoring duplicate libraries: '-lm'

Author: dzenanz

.github/workflows/build-test-package.yml

@@ -15,6 +15,8 @@ on:
 jobs:
   cxx-build-workflow:
     uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-cxx.yml@v5.4.2
+    with:
+      warnings-to-ignore: 'ld. warning. ignoring duplicate libraries. \'-lm\''
 
   python-build-workflow:
     uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-package-python.yml@v5.4.2