chore: renaming jaeger http trace propagator to jaeger propagator

[obecny]

Fixes #2136

[codecov]

Codecov Report

Merging #2148 (b07bab1) into main (a9d300d) will not change coverage.
The diff coverage is 100.00%.

❗ Current head b07bab1 differs from pull request most recent head 79234f7. Consider uploading reports for the commit 79234f7 to get more accurate results

@@           Coverage Diff           @@
##             main    #2148   +/-   ##
=======================================
  Coverage   92.82%   92.82%           
=======================================
  Files         140      140           
  Lines        5002     5002           
  Branches     1030     1030           
=======================================
  Hits         4643     4643           
  Misses        359      359           

Impacted Files	Coverage Δ
...kages/opentelemetry-node/src/NodeTracerProvider.ts	100.00% <100.00%> (ø)
...elemetry-propagator-jaeger/src/JaegerPropagator.ts	100.00% <100.00%> (ø)

[Flarna]

an entry in https://github.com/open-telemetry/opentelemetry-js#upgrade-guidelines would be good.

[dyladan]

Looks good to merge when the conflicts are resolved