try ignoring tests dirs in cpp linter

Author: cwaldren-ld

.github/workflows/cpp-linter.yml

@@ -51,7 +51,7 @@ jobs:
           # Set this option to 'false' to analyze any source files in the repo. Defaults to 'true'.
           files-changed-only: true
           # Set this option with string of path(s) to ignore.
-          ignore: '.github|.idea|.vscode|extern'
+          ignore: '.github|.idea|.vscode|extern|libs/client-sdk/tests|libs/common/tests|libs/server-sent-events|tests'
           # The directory containing compile_commands.json file.
           database: /home/runner/build
           # A string of extra arguments passed to clang-tidy for use as compiler arguments. Multiple arguments are separated by spaces so the argument name and value should use an '=' sign instead of a space.