Add cloud.provider and cloud.platform to AWS detectors

[abihf]

AWS XRay exporter in opentelemetry-collector-contrib rely on cloud.platform to differentiate between services.

References:
https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/2d1672ce1a5391eb5ba06ea3f2f01440008de2d8/exporter/awsxrayexporter/internal/translator/aws.go#L160

Opentelemetry js already did it: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/c7b32e8c9c86ce154f0fb39fd6b0a00391848021/detectors/node/opentelemetry-resource-detector-aws/src/detectors/AwsEcsDetector.ts#L56

[linux-foundation-easycla]

The committers are authorized under a signed CLA.

• ✅ Abi Hafshin Alfarouq (38bd0db, 1f2dac1)

[codecov]

Codecov Report

Merging #1043 (92cf95a) into main (265ebea) will increase coverage by 0.0%.
The diff coverage is 100.0%.

@@          Coverage Diff          @@
##            main   #1043   +/-   ##
=====================================
  Coverage   69.4%   69.4%           
=====================================
  Files         77      77           
  Lines       4929    4935    +6     
=====================================
+ Hits        3423    3429    +6     
  Misses      1367    1367           
  Partials     139     139           

Impacted Files	Coverage Δ
detectors/aws/ec2/ec2.go	85.7% <100.0%> (+0.2%)	⬆️
detectors/aws/ecs/ecs.go	54.7% <100.0%> (+2.2%)	⬆️
detectors/aws/eks/detector.go	35.6% <100.0%> (+2.2%)	⬆️