[PMD+PDS] Upgrade to PMD 7

[Jeeppler]

Upgrade to PMD 7.

PMD 7 changed the CLI parameters and calls: https://pmd.github.io/pmd/pmd_release_notes_pmd7.html#revamped-command-line-interface.

Release date: 27th May 2023.

[vimalJD]

Is this project is ongoing? Let me know further (DOCS) to contribute on it as "good first issue".

[Jeeppler]

@vimalJD sure, both PMD and SecHub are ongoing. Keep in mind the *nix label means that you have some previous experience with Linux and in this case container technology. If you have the Linux skills this is a good first issue. Otherwise it might not be a good first issue.

Regardless, here are the references to the documentation:

To get started scanning using SecHub and containers have a look at:

• https://mercedes-benz.github.io/sechub/latest/sechub-getting-started.html

To understand how to start/run PDS+PMD have a look at:

• https://github.com/mercedes-benz/sechub/blob/develop/sechub-pds-solutions/pmd/README.adoc

This issue is best done in combination with writing a system test. For an example on how to do this have a look at:

• https://github.com/mercedes-benz/sechub/blob/develop/sechub-pds-solutions/gosec/tests/README.adoc
• https://github.com/mercedes-benz/sechub/blob/develop/sechub-pds-solutions/gosec/tests/systemtest_local.json

The system test are documented at:

• https://mercedes-benz.github.io/sechub/latest/sechub-techdoc.html#section-systemtests

How to contribute is documented here:

• https://github.com/mercedes-benz/sechub/blob/develop/sechub-doc/src/docs/asciidoc/sechub-developer-quickstart-guide.adoc#start-contributing