chore: release 2.5.12 (agno-agi#7229)

# Changelog

## New Features:

- DoclingTools: Adds Docling-based document conversion tool with
Markdown/Text/HTML/JSON/DocTags exports and advanced PDF/OCR options.

## Improvements:

- Slack Interface: Resolve user display names and emails via
`resolve_user_identity` flag; strip bot's own @mention from message
text.
- Claude Model: Preserve Anthropic server tool execution messages.
- CodingTools: System prompt now dynamically describes only enabled
tools instead of always listing all tools.
- Learning: Softened "ALWAYS search" rule to skip searching for
straightforward operational tasks.

## Bug Fixes:

- Team Streaming: Wrap member `RunContentEvent` as
`IntermediateRunContentEvent` to prevent duplicate content when leader
synthesizes member responses.

Co-authored-by: Ashpreet <ashpreetbedi@users.noreply.github.com>

Author: ysolanky

libs/agno/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "agno"
-version = "2.5.11"
+version = "2.5.12"
 description = "The programming language for agentic software."
 requires-python = ">=3.7,<4"
 readme = "README.md"