Rust: extend paths-ignore to all rust/ql

This will also exclude code examples in `rust/ql/src/queries`.

Author: Paolo Tranquilli

.github/codeql/codeql-config.yml

@@ -9,5 +9,4 @@ paths-ignore:
   - '/python/'
   - '/javascript/ql/test'
   - '/javascript/extractor/tests'
-  - '/rust/ql/test'
-  - '/rust/ql/integration-tests'
+  - '/rust/ql'