fix(template): service Sure template docker compose variables

[am-monkey]

Changes

Updated docker compose template for "Sure" service. Normalized environment variables.

Issues

• Fixes

Category

• Fixing or updating existing one click service

Preview

AI Assistance

• AI was NOT used to create this PR
• AI was used (please describe below)

Testing

Tested on my self hosted coolify instance.

Contributor Agreement

Important

• I have read and understood the contributor guidelines. If I have failed to follow any guideline, I understand that this PR may be closed without review.
• I have searched existing issues and pull requests (including closed ones) to ensure this isn't a duplicate.
• I have tested all the changes thoroughly with a local development instance of Coolify and I am confident that they will work as expected when a maintainer tests them.

[ShadowArcanist]

What exactly is the issue this PR fixes on the template?

[am-monkey]

Wrapped env variables with curly brackets.
Without them Coolify throws error on deploy.

[ShadowArcanist]

Wrapped env variables with curly brackets. Without them Coolify throws error on deploy.

On which version of Coolify it was throwing error?

Coolify v4.0.0-beta.464 had a bug where deploying services throws error like failed to read /data/coolify/services/owkggg480cc4g4swoggggwks/.env: line 16: unexpected character "$" in variable name "$SERVICE_USER_POSTGRES=" and it was fixed on Coolify v4.0.0-beta.465