chore(deps): update dependency grafana/mcp-grafana to v1.4.2

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana/mcp-grafana	patch	1.4.1 → 1.4.2

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Release Notes

grafana/mcp-grafana (grafana/mcp-grafana)

v1.4.2

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Added

• Optional version parameter on get_dashboard_by_uid to retrieve a specific saved version of a dashboard. New list_dashboard_versions tool returns version metadata (version number, author, timestamp, message) (#​1158)

Fixed

• Removed unconditional tools/list response field injection (resultType, cacheScope, ttlMs) that broke legacy MCP clients which validate against the base protocol schema (#​1179)

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