A1-1-2.1: QL test testing behavior of response file do not work as expected

[jketema]

The test for rule A1-1-2.1 has a QL test for response files

codeql-coding-standards/cpp/autosar/test/rules/A1-1-2.1/responsefile.cpp

Line 1 in 22c2da3

// semmle-extractor-options: --clang -std=c++14 @foo

This is non-functional, as our testing framework skips over any file that doesn't have a common C or C++ extension. Hence, any options in the response file is ignored.