fix(opentelemetry-exporter-prometheus): Update default PrometheusExporter to not append a timestamp to match the text based exposition format #3961 @JacksonWeber
fix(sdk-metrics): Update default Histogram's boundary to match OTEL's spec #3893 @chigia001
fix(sdk-metrics): preserve startTime for cumulative ExponentialHistograms #3934 @aabmass
fix(sdk-trace-web): add secureConnectionStart to https only #3879 @Abinet18
:house: (Internal)
feat(minification): [Minification] Add noEmitHelpers, importHelpers and tslib as a dependency #3913 @MSNev