Update invoice-ninja to version v5.12.55

[al-lac]

🤖 This is an automated pull request to update invoice-ninja to version v5.12.55. This PR must be reviewed and tested before merging.

Auto-generated update considerations:

• Fixes for compose dependencies in v5.12.55 may affect Docker Compose configuration or container startup order
• New console command added to pull PEPPOL docs in v5.12.53 may require additional configuration or permissions if PEPPOL integration is used
• Password reset functionality now forces app.url which may require verification that APP_URL environment variable is correctly set
• Updated dependencies in v5.12.54 could potentially affect container behavior or require image rebuild

Original GitHub release notes

[github-actions]

🎉   Linting finished with no errors or warnings   🎉

Thank you for your submission! This is an automated linter that checks for common issues in pull requests to the Umbrel App Store.

Please review the linting results below and make any necessary changes to your submission.

Linting Results

Severity	File	Description
ℹ️	invoice-ninja/docker-compose.yml	Mounted file/directory "/invoice-ninja/data/fake/../storage" doesn't exist: The volume "${APP_DATA_DIR}/data/fake/../storage:/var/www/html/storage:ro" tries to mount the file/directory "/invoice-ninja/data/fake/../storage", but it is not present. This can lead to permission errors!
ℹ️	invoice-ninja/docker-compose.yml	Mounted file/directory "/invoice-ninja/data/fake/../storage" doesn't exist: The volume "${APP_DATA_DIR}/data/fake/../storage:/var/www/html/storage" tries to mount the file/directory "/invoice-ninja/data/fake/../storage", but it is not present. This can lead to permission errors!
ℹ️	invoice-ninja/docker-compose.yml	Potentially using unsafe user in service "nginx": The default container user "root" can lead to security vulnerabilities. If you are using the root user, please try to specify a different user (e.g. "1000:1000") in the compose file or try to set the UID/PUID and GID/PGID environment variables to 1000.
ℹ️	invoice-ninja/docker-compose.yml	Potentially using unsafe user in service "app": The default container user "root" can lead to security vulnerabilities. If you are using the root user, please try to specify a different user (e.g. "1000:1000") in the compose file or try to set the UID/PUID and GID/PGID environment variables to 1000.

Legend

Symbol	Description
❌	Error: This must be resolved before this PR can be merged.
⚠️	Warning: This is highly encouraged to be resolved, but is not strictly mandatory.
ℹ️	Info: This is just for your information.