chore(master): release mender 8.0.0

[mender-test-bot]

🤖 I have created a release beep boop

8.0.0 (2026-07-20)

⚠ BREAKING CHANGES

• featureGates.k8sTlsSecrets is removed. The kubernetes.io/tls Secret type is now unconditional. Existing installs with SSL enabled must delete the api-gateway Secret before upgrading
• device_license_count is removed. The replacement device_auth.cronjobs is now enabled by default with the device-auth-license-count job pre-configured. Existing installs must delete the old CronJob before upgrading to avoid a name conflict.
• NATS subchart

Features

• move api gateway secrets to kubernetes standard (1d5c63b)
• remove deprecated device_license_count (827be71)
• upgrade NATS subchart to 2.14 (9db3d31)

Bug Fixes

• enforce redis_conf_validation in deployments pod template (4104d63)
• guard secret-mongodb-common-prerelease.yaml on existingSecret (d568a94)
• reject global.mongodb.existingSecret/URL when internal mongodb is enabled (2400ba4)
• reject nats.existingSecret when internal NATS is enabled (9900128)

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[mender-test-bot]

🤖 Created releases:

• mender-8.0.0

🌻