chore: prepare release 1.20.0/0.47.0

[pichlermarc]

1.20.0

🚀 (Enhancement)

• perf(otlp-transformer): skip unnecessary base64 encode of span contexts #4343 @seemk
• feat(sdk-trace-base): improve log messages when dropping span events #4223 @mkubliniak

0.47.0

💥 Breaking Change

• fix(exporter-logs-otlp-http)!: programmatic headers take precedence over environment variables #2370 @Vunovati
• fix(exporter-logs-otlp-proto)!: programmatic headers take precedence over environment variables #2370 @Vunovati
• fix(exporter-trace-otlp-http)!: programmatic headers take precedence over environment variables #2370 @Vunovati
• fix(exporter-trace-otlp-proto)!: programmatic headers take precedence over environment variables #2370 @Vunovati

🐛 (Bug Fix)

• fix(instrumentation): use caret range on import-in-the-middle #4380 @pichlermarc
• fix(instrumentation): do not import 'path' in browser runtimes #4378 @pichlermarc
  • Fixes a bug where bundling for web would fail due to InstrumentationNodeModuleDefinition importing path

[codecov]

Codecov Report

Merging #4410 (5944fc6) into main (b7e3d44) will increase coverage by 0.01%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4410      +/-   ##
==========================================
+ Coverage   92.22%   92.23%   +0.01%     
==========================================
  Files         334      334              
  Lines        9463     9463              
  Branches     2009     2009              
==========================================
+ Hits         8727     8728       +1     
+ Misses        736      735       -1     

see 1 file with indirect coverage changes