v0.12.0 Release

[obecny]

Draft release: https://github.com/open-telemetry/opentelemetry-js-contrib/releases/tag/untagged-30b90b15b2899142813d

[codecov]

Codecov Report

Merging #287 (d5471b8) into master (3135451) will not change coverage.
The diff coverage is 71.42%.

@@           Coverage Diff           @@
##           master     #287   +/-   ##
=======================================
  Coverage   95.32%   95.32%           
=======================================
  Files         115      115           
  Lines        5948     5948           
  Branches      586      586           
=======================================
  Hits         5670     5670           
  Misses        278      278           

Impacted Files	Coverage Δ
...ntelemetry-resource-detector-github/src/version.ts	0.00% <0.00%> (ø)
...metry-propagator-grpc-census-binary/src/version.ts	0.00% <0.00%> (ø)
packages/opentelemetry-host-metrics/src/version.ts	100.00% <100.00%> (ø)
...entelemetry-instrumentation-graphql/src/version.ts	100.00% <100.00%> (ø)
...s/node/opentelemetry-plugin-pg-pool/src/version.ts	100.00% <100.00%> (ø)
...lugins/node/opentelemetry-plugin-pg/src/version.ts	100.00% <100.00%> (ø)
...web/opentelemetry-plugin-react-load/src/version.ts	100.00% <100.00%> (ø)

[obecny]

@open-telemetry/javascript-approvers we should release this asap so that contrib is up to date with latest core 0.14 :)