Do not report DL3042 if cache mount is used

[bvolkmer]

• This is a bug report
• This is a feature request
• I searched existing issues before opening this one

Feature request

Do not report DL3042 if pip is called like:

RUN --mount=type=cache,target=/root/.cache/pip \
    pip install ...

Output of hadolint --version or
docker run --rm hadolint/hadolint hadolint --version or
docker run --rm ghcr.io/hadolint/hadolint hadolint --version:

Haskell Dockerfile Linter 2.12.1

[mikesir87]

Similar issue for DL3060 when cache used for yarn

[UnknownPlatypus]

I believe this could be closed as a duplicate of #497