Update dependency grafana/grafana to v11.6.12

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana/grafana	patch	11.6.9 → 11.6.12

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Release Notes

grafana/grafana (grafana/grafana)

v11.6.12

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v11.6.11

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Features and enhancements

• Alerting: Add limits for the size of expanded notification templates #​117713, @​yuri-tceretian
• Correlations: Remove support for org_id=0 #​116936, @​gelicia
• Go: Update to 1.25.7 #​117476, @​macabu
• Security(Public dashboards annotations): use dashboard timerange if time selection disabled #​117865, @​github-actions[bot]

v11.6.10

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Features and enhancements

• API: Add missing scope check on dashboards #​116894, @​Proximyst
• Avatar: Require sign-in, remove queue, respect timeout #​116898, @​macabu
• Go: Update to 1.25.6 #​116402, @​macabu

Bug fixes

• Alerting: Fix a race condition panic in ResetStateByRuleUID #​115691, @​alexander-akhmetov

v11.6.10+security-01

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Bug fixes

• Security: fix for CVE-2026-21722

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