ci: add cyclocomp to lint workflow extra-packages

cyclocomp_linter in .lintr requires the cyclocomp package, which was
not being installed in the lint CI job, causing lintr::lint_package()
to abort with "cyclocomp_linter is disabled due to lack of the
cyclocomp package".

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: billdenney

.github/workflows/lint.yaml

@@ -23,7 +23,7 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: any::lintr, local::.
+          extra-packages: any::lintr, any::cyclocomp, local::.
           needs: lint
 
       - name: Lint