Merge main into async changes#1321

Merged

lalitb merged 18 commits intoopen-telemetry:async-changesfrom

owent:merge_main_into_async_changes

Apr 6, 2022

Commits on Mar 21, 2022

install sdk config (#1273)
esigo
authored

Commits on Mar 22, 2022

Bump actions/cache from 2 to 3 (#1277)
dependabot[bot]
authored

Commits on Mar 23, 2022

Add owent as an Approver (#1276)
lalitb
authored

Commits on Mar 24, 2022

Commits on Mar 25, 2022

fix compilation error with protobuf 3.5 (#1289)
esigo
authored

Commits on Mar 26, 2022

Fix span SetAttribute crash (#1283)
esigo
authored

Commits on Mar 30, 2022

Synchronous Metric collection (Delta , Cumulative) (#1265)
lalitb
authored

Commits on Mar 31, 2022

Rename `http_client_curl` to `opentelemetry_http_client_curl` (#1301)
owent
authored

Commits on Apr 1, 2022

Commits on Apr 4, 2022

Commits on Apr 5, 2022

Excempt should be applied on issue instead of PR (#1316)
ThomsonTan
authored

Commits on Apr 6, 2022