Add @johnbley to codeowners

[dyladan]

Seems we missed adding him

[codecov]

Codecov Report

Merging #1849 (4bb1f3f) into master (ee014c9) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master    #1849    +/-   ##
========================================
  Coverage   92.38%   92.38%            
========================================
  Files         157      170    +13     
  Lines        5108     5727   +619     
  Branches     1091     1235   +144     
========================================
+ Hits         4719     5291   +572     
- Misses        389      436    +47     

Impacted Files	Coverage Δ
...emetry-core/src/platform/node/RandomIdGenerator.ts	87.50% <0.00%> (-6.25%)	⬇️
...es/opentelemetry-context-zone-peer-dep/src/util.ts	100.00% <0.00%> (ø)
...kages/opentelemetry-exporter-collector/src/util.ts	100.00% <0.00%> (ø)
.../opentelemetry-exporter-collector/src/transform.ts	85.47% <0.00%> (ø)
packages/opentelemetry-web/src/utils.ts	94.63% <0.00%> (ø)
...kages/opentelemetry-web/src/StackContextManager.ts	97.05% <0.00%> (ø)
packages/opentelemetry-web/src/types.ts	100.00% <0.00%> (ø)
...ry-context-zone-peer-dep/src/ZoneContextManager.ts	85.18% <0.00%> (ø)
...rumentation/src/platform/browser/old/autoLoader.ts	100.00% <0.00%> (ø)
...ntelemetry-web/src/enums/PerformanceTimingNames.ts	100.00% <0.00%> (ø)
... and 4 more