IBX-10868: Document Anthropic connector

[dabrt]

Question	Answer
JIRA Ticket	IBX-10868
Versions	v5.0.x
Edition	all

Document Anthropic connector LTS update for v5

Checklist

• [x] Text renders correctly
• [x] Text has been checked with vale
• [x] Added link to this PR in relevant JIRA ticket or code PR

[github-actions[bot]]

Preview of modified files

Preview of modified Markdown:

• docs/ai_actions/ai_actions_guide.md
• docs/ai_actions/configure_ai_actions.md
• docs/ibexa_products/editions.md