AlibabaCloud LogService Exporter - support new trace interface

[shabicheng]

Description:

• change trace type from opencensus to opentelemetry

Link to tracking Issue:

Testing:

• unit test has passed with coverage 100%.
• Manually tested, sending to a LogService's instance.

Documentation:
No need to update readme.

[codecov]

Codecov Report

Merging #1713 (6e77291) into master (0705ace) will decrease coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1713      +/-   ##
==========================================
- Coverage   89.54%   89.48%   -0.06%     
==========================================
  Files         373      373              
  Lines       18233    18143      -90     
==========================================
- Hits        16326    16235      -91     
- Misses       1417     1419       +2     
+ Partials      490      489       -1     

Flag	Coverage Δ
integration	70.97% <ø> (ø)
unit	88.17% <100.00%> (-0.07%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...r/alibabacloudlogserviceexporter/trace_exporter.go	100.00% <100.00%> (ø)
...cloudlogserviceexporter/tracedata_to_logservice.go	100.00% <100.00%> (ø)
receiver/prometheusexecreceiver/receiver.go	85.83% <0.00%> (-2.50%)	⬇️
receiver/k8sclusterreceiver/watcher.go	97.64% <0.00%> (+2.35%)	⬆️

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[shabicheng]

@bogdandrutu @tigrannajaryan Hi, could you please add my partner @kongluoxing as one of this exporter's codeowners, we will do the reviews directly in this repository.

[bogdandrutu]

@shabicheng please create a PR to add them to the codeowners file

[bogdandrutu]

@shabicheng I will expect the other owner to approve the PR at one point :)

[kongluoxing]

LGTM