* Implemented aws.ecs.* resource attributes in go.opentelemetry.io/detectors/aws/ecs

* Update detectors/aws/ecs/ecs_test.go

Co-authored-by: Chester Cheung <[email protected]>

* Update detectors/aws/ecs/ecs_test.go

Co-authored-by: Chester Cheung <[email protected]>

* fix: lower-case the value of aws.ecs.launchtype

* Add aws.logs.* support, remove spurious /aws prefix from log group

* Add tests for V4 on Fargate launch type

* Rebase

* Fix integration tests, fix behavior on Windows

After a surreal session of debugging, it turns out that httptest.NewServer fails on Windows by failing to bind the server socket unless the GoLang package name contains "test". To deal with that, I split the tests between "integration tests" needing a HTTP server into "ecs/test", and the other in "ecs".

In order to work around the need of being resilient to the lack of /proc/self/cgroup (which happens in our tests but, above all, when running containers on Windows), the ECVS detector is now more lenient to not finding the container id.

Co-authored-by: Chester Cheung <[email protected]>