chore(renovate.json): enable docker, scan requirements.in

[fruch]

docker so we can update the stress tools, but it's only works if we'll seprate them into thier own repos, and use semver or something similar

Testing

• [ ]

PR pre-checks (self review)

• I added the relevant backport labels
• I didn't leave commented-out/debugging code

Reminders

• Add New configuration option and document them (in sdcm/sct_config.py)
• Add unit tests to cover my changes (under unit-test/ folder)
• Update the Readme/doc folder relevant to this change (if needed)