Add ability to run clang-tidy against specific ref (#10721)
Add ability to run clang-tidy against specific ref (#10721)

Signed-off-by: Yan Avlasov <afb66d2748ba0362a3ca849f18f55b7a7959dce3@google.com>
lizan/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy-wasm,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy-wasm,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy,lyft/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy-wasm,lyft/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy-wasm