ci: bump CodeQL version to v2

v1 CodeQL got deprecated:

  This version of the CodeQL Action was deprecated on January 18th,
  2023, and is no longer updated or supported. For better performance,
  improved security, and new features, upgrade to v2. For more
  information

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
1 file changed