fix(otlp-transformer): add missing prepublishOnly script

[dyladan]

@opentelemetry/otlp-transformer 0.29.1

• fix(otlp-transformer): include missing prepublishOnly script which ensures esm and esnext build files are created and packaged

[dyladan]

anybody know why some checks would be cancelled?

[codecov]

Codecov Report

Merging #2998 (f07c52f) into main (7649cf1) will decrease coverage by 0.89%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2998      +/-   ##
==========================================
- Coverage   92.65%   91.76%   -0.90%     
==========================================
  Files         185      178       -7     
  Lines        6144     5671     -473     
  Branches     1300     1212      -88     
==========================================
- Hits         5693     5204     -489     
- Misses        451      467      +16     

Impacted Files	Coverage Δ
packages/opentelemetry-sdk-trace-web/src/utils.ts	65.62% <0.00%> (-29.38%)	⬇️
...emetry-instrumentation-xml-http-request/src/xhr.ts
...s/opentelemetry-instrumentation-fetch/src/fetch.ts
...es/opentelemetry-context-zone-peer-dep/src/util.ts
...mentation-xml-http-request/src/enums/EventNames.ts
...ation-xml-http-request/src/enums/AttributeNames.ts
...ry-context-zone-peer-dep/src/ZoneContextManager.ts
...-instrumentation-fetch/src/enums/AttributeNames.ts
packages/opentelemetry-resources/karma.worker.js	100.00% <0.00%> (+100.00%)	⬆️
...ckages/opentelemetry-sdk-trace-web/karma.worker.js	100.00% <0.00%> (+100.00%)	⬆️

[dyladan]

I will release this as soon as we can get it approved and merged

[vmarchaud]

anybody know why some checks would be cancelled?

I had this in the past but that was linked to github actions runner, might some kind of outage

[pichlermarc]

We'll have to bump the version and re-publish the dependents of @opentelemetry/otlp-transformer too, right? 🤔

[legendecas]

@blumamir suggested we should release a new version of @opentelemetry/resources with #3004 so that test failing in the contrib repo can be fixed.

[dyladan]

/easycla