improvement(sct): Do not require AWS for conf-docs and update-conf-docs

[pehala]

Currently, both conf-docs and update-conf-docs require AWS due to instantiation of SCTConfiguration class. Make required methods class methods to prevent unnecessary validation. This also speeds up the entire process.

Testing

• Locally

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)

[vponomaryov]

Need to fix the precommit failure:

11:58:37  Currently, both conf-docs and update-conf-docs require AWS due to instantiation of SCTConfiguration class. Make required methods class methods to prevent unnecessary validation.
11:58:37  ✖   body's lines must not be longer than 120 characters [body-max-line-length]

[pehala]

Need to fix the precommit failure:

11:58:37  Currently, both conf-docs and update-conf-docs require AWS due to instantiation of SCTConfiguration class. Make required methods class methods to prevent unnecessary validation.
11:58:37  ✖   body's lines must not be longer than 120 characters [body-max-line-length]

Should be fixed

[soyacz]

LGTM