cpp-linter: ignore third-party dependencies from FetchContent

Signed-off-by: Jared Van Bortel <jared@nomic.ai>

Author: cebtenzzre

.github/workflows/cpp-linter.yml

@@ -56,6 +56,7 @@ jobs:
           database: gpt4all-chat/build
           version: 18
           files-changed-only: false  # TODO: set this back to true
+          ignore: 'gpt4all-chat/build/_deps'
       - name: Fail Fast
         if: steps.linter.outputs.clang-tidy-checks-failed > 0
         run: exit 1