feat(detector-aws): add DetectorSync implementation for ECS detector

[david-luna]

Context

Another PR moving away from the deprecated Detector interface in favour to the DetectorSync interface. This time is for AWS ECS detector and it might help a bit in open-telemetry/opentelemetry-js#3582

Not doing all detectors at once:

• detectors are independent from each other
• smaller PRs for faster reviews

Short description of the changes

• add AwsEcsDetectorSync class and instance
• make AwsEcsDetector reuse the new sync instance
• update tests

Note: since this package is marked as stable (major version is 1) we are doing a non breaking change by adding the new class and mark the current as deprecated. The async detector changes behavior, it does not throw anymore, and it was discussed in last SIG meeting (2024-07-31). The outcome was we're okay with that.

A couple of PRs will follow:

• one to suppress internal tracing.
• one to add the sync detector to auto-instrumentations package.

[codecov]

Codecov Report

Attention: Patch coverage is 97.16981% with 3 lines in your changes missing coverage. Please review.

Project coverage is 90.41%. Comparing base (dfb2dff) to head (439e927).
Report is 199 commits behind head on main.

Files	Patch %	Lines
...e-detector-aws/src/detectors/AwsEcsDetectorSync.ts	97.02%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2331      +/-   ##
==========================================
- Coverage   90.97%   90.41%   -0.56%     
==========================================
  Files         146      150       +4     
  Lines        7492     7369     -123     
  Branches     1502     1527      +25     
==========================================
- Hits         6816     6663     -153     
- Misses        676      706      +30     

Files	Coverage Δ
...ource-detector-aws/src/detectors/AwsEcsDetector.ts	100.00% <100.00%> (+3.12%)	⬆️
...metry-resource-detector-aws/src/detectors/index.ts	100.00% <100.00%> (ø)
...tapackages/auto-instrumentations-node/src/utils.ts	98.19% <ø> (-0.59%)	⬇️
...e-detector-aws/src/detectors/AwsEcsDetectorSync.ts	97.02% <97.02%> (ø)

... and 67 files with indirect coverage changes

[david-luna]

note for reviewer: this is necessary to allow this single refactor instead of doing all AWS detector at once.

[david-luna]

closed in favour of #2376 following this suggestion