Update changedetection image to 0.55.7-ls298

[BeeJoe]

Summary

• Updates the LinuxServer changedetection.io image from 0.55.7-ls297 to 0.55.7-ls298.
• Bumps the StartOS package version from 0.55.7:2 to 0.55.7:3.

Validation

• Verified latest upstream changedetection.io release is 0.55.7.
• Verified lscr.io/linuxserver/changedetection.io:0.55.7-ls298 exists and publishes linux/amd64 and linux/arm64 manifests.
• npm ci
• npm run check
• npx prettier --check startos package.json
• npm run build
• git diff --check
• start-cli s9pk inspect changedetection_x86_64.s9pk manifest

Install / runtime testing

• Installed changedetection_x86_64.s9pk to StartOS
• Confirmed StartOS reports changedetection version 0.55.7:3.
• Confirmed StartOS notification list is clear after reinstall.
• Confirmed changedetection.io starts, loads the existing datastore and watch, and passes the port-listening readiness check.
• Confirmed Manage Access action input can be read from the installed package runtime.