test: prevent include of internal header bits/basic_string.h

Used in `tests/cilium_websocket_decap_integration_test.cc`

Signed-off-by: Marco Hofstetter <[email protected]>

Author: mhofstetter

.clangd

@@ -8,6 +8,7 @@ Diagnostics:
     IgnoreHeader:
       - "linux/in\\.h"
       - "linux/in6\\.h"
+      - "bits/basic_string\\.h"
 # CompileFlags:
 #   CompilationDatabase: ./compile_commands.json
 #   # Unfortunately, above config isn't working as expected.