Optimize tracing for Docker Compose projects

[HajimohammadiNet]

Summary

This pull request optimizes the OpenTelemetry tracing functionality for Docker Compose projects. Key improvements include:

• Pre-allocating slices in ProjectOptions, ServiceOptions, and ContainerOptions to minimize memory allocations and improve execution speed.
• Simplified utility functions (keys, getSourceNames, etc.) for readability and maintainability.
• Optimized the project hash calculation by using direct formatting of the hash output.
• Improved tracing instrumentation by reducing redundant conversions between SpanStartOption and SpanStartEventOption.
• Enhanced metadata collection for Docker containers, services, and Compose projects.

Testing

• Unit tests have been added to cover the new functionality.
• The full test suite, including end-to-end tests, has been run locally and passed without errors.

Issue Reference

Closes #12217

[ndeloof]

please sign off your commit, this is a legal requirement for all contributions on this repo

about your PR, afaict you just added a few explicit casts which have no (?) impact, as compiler already manages. What about the other improvements you listed here ?

[ndeloof]

closing for inactivity