Skill role refactor

[michael-kenzel]

Yet more untethering: make the bot core independent from skill role stuff.

• role-manager now only responsible for keeping track of role assignments, offers events other components can hook into to run checks and be notified of role changes
• remove debounce_map, not necessary anymore since role change events only fire once for each change
• Introduce SkillRoles component to house skill role logic and tracking
• Move skill role tracking and pink role handling into new SkillRoles and Pink components
• simplify skill role logic by using sets instead of arrays
• Introduce established role to replace skill-role-based checks for screenshots and invite links
  • Wheatley now only offers an is_established_member() method
  • the idea is that the role will be auto-assigned based on server-specific criteria by another server-specific component (will be added in a separate PR)

[sonarqubecloud]

Quality Gate passed

Issues
36 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.1% Duplication on New Code

See analysis details on SonarQube Cloud