v9.7.3

🎉 New Features

• skillArtifactContent attribute on SkillArtifact: Adds the skill_artifact_content (skillArtifactContent) field to SkillArtifact in both pyatlan and pyatlan_v9. The Atlas API returns this attribute on SkillArtifact entities but PyAtlan was silently dropping it (Config.extra = ignore). This unblocks the Atlan MCP server from surfacing skill .md body content via get_asset / search_assets without needing a raw HTTP fallback. (#937)

🐞 Bug Fixes

• Connection.creator validates connector_type slug (BLDX-1294): Connection.creator and Connection.creator_async (both pyatlan and pyatlan_v9) now validate connector_type.value against ^[a-z0-9-]+$ — the same pattern the Atlan platform's server-side asset-import (RAB) path enforces. Raises InvalidRequestError (ATLAN-PYTHON-400-079) on violation. Mirrors the Java SDK constraint. Root cause: a customer-created dev_cmdr connection (underscore in slug) caused RAB to reject every asset-import referencing it, leaving phantom Connection rows in Atlas. (#939)

Full Changelog: 9.7.2...9.7.3