Add a linter to ensure google_project_services lists are in alphabetical order

### TL;DR

Add a linter to ensure google_project_services lists are in alphabetical order

See: https://github.com/abcxyz/infra/pull/412/files#r1311663819

### Detailed design

_No response_

### Alternatives considered

_No response_

### Additional information

_No response_

The issue references a pull request in a different repository (abcxyz/infra#412) as context. Start by examining that PR to understand the specific formatting rule for google_project_services lists. Then, look at the existing linter code in this repository to see how other linting rules are structured. The work involves adding a new rule to check alphabetical order, likely in a file defining linter rules. 'Done' means the linter can detect and report non-alphabetical lists.

Scritto dal modello di indicizzazione a partire dal testo della issue.