[readme] use clang-tidy status badge from pull_request_target

Author: akallabeth

README.md

@@ -7,7 +7,7 @@ interoperability can finally liberate your computing experience.
 ## Code Quality Status
 
 [![abi-checker](https://github.com/FreeRDP/FreeRDP/actions/workflows/abi-checker.yml/badge.svg)](https://github.com/FreeRDP/FreeRDP/actions/workflows/abi-checker.yml)
-[![clang-tidy-review](https://github.com/FreeRDP/FreeRDP/actions/workflows/clang-tidy.yml/badge.svg)](https://github.com/FreeRDP/FreeRDP/actions/workflows/clang-tidy.yml)
+[![clang-tidy-review](https://github.com/FreeRDP/FreeRDP/actions/workflows/clang-tidy.yml/badge.svg?event=pull_request_target)](https://github.com/FreeRDP/FreeRDP/actions/workflows/clang-tidy.yml)
 [![CodeQL](https://github.com/FreeRDP/FreeRDP/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/FreeRDP/FreeRDP/actions/workflows/codeql-analysis.yml)
 [![mingw-builder](https://github.com/FreeRDP/FreeRDP/actions/workflows/mingw.yml/badge.svg)](https://github.com/FreeRDP/FreeRDP/actions/workflows/mingw.yml)
 [![[arm,ppc,ricsv] architecture builds](https://github.com/FreeRDP/FreeRDP/actions/workflows/alt-architectures.yml/badge.svg)](https://github.com/FreeRDP/FreeRDP/actions/workflows/alt-architectures.yml)