2073cf2172
Following the pattern from ROCm/rocm-libraries#2679, add logic to skip CI builds when only documentation files are modified. Changes: - Add SKIPPABLE_PATH_PATTERNS for docs, markdown, and .gitignore files - Return empty projects list when only skippable paths are modified - No workflow changes needed - existing projects != '[]' check handles it - Add unit tests for doc-filtering logic - Fix existing tests with proper subprocess mocking Reference: https://github.com/ROCm/rocm-libraries/pull/2679