Update OTLP/HTTP Default Port Per Changes to the Spec

[Grunet]

Resolves #431

My biggest concern has to do with the 2nd commit, in particular b/c I couldn't find evidence in the spec of a non-protobuf-ed HTTP transport mechanism, which it seemed like Contrib/Otlp/Exporter.php is trying to do (sending an ordinary HTTP request, maybe with a JSON body). So I wasn't sure if updating the default port was appropriate in this case.

A smaller concern also has to do with the 2nd commit, namely if updating the port on the collector container in the compose file was OK (seemed to me like it was per this PR from the collector repo)

[codecov]

Codecov Report

Merging #438 (e17a242) into main (8d61da2) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##               main     #438   +/-   ##
=========================================
  Coverage     91.14%   91.14%           
  Complexity      804      804           
=========================================
  Files            76       76           
  Lines          1977     1977           
=========================================
  Hits           1802     1802           
  Misses          175      175           

Impacted Files	Coverage Δ
src/Contrib/OtlpHttp/Exporter.php	97.14% <100.00%> (ø)

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[Grunet]

Not sure I quite understand why the first codecov/project check failed, but may be missing something subtle

[SeanHood]

For the 2nd commit, src/Contrib/Otlp/Exporter.php is no longer in use. I think this was a previous attempt at OTLP. This exporter should be removed tbh.

src/Contrib/OtlpHttp/Exporter.php is the working HTTP Exporter which uses the supported Protobuf format.

As for the docker-compose update, looks good to me.

[Grunet]

For the 2nd commit, src/Contrib/Otlp/Exporter.php is no longer in use. I think this was a previous attempt at OTLP. This exporter should be removed tbh.

src/Contrib/OtlpHttp/Exporter.php is the working HTTP Exporter which uses the supported Protobuf format.

Saw (late) this was already being taken care of in #440 so I removed the commit I had for it from this PR

[bobstrecansky]

My apologies @Grunet - I thought you had force pushed Sean’s changes, but they had not quite made it into main yet - you should be able to now.

[Grunet]

@bobstrecansky I saw Sean's changes were merged into main so I brought all of main's changes into my branch now (was having trouble rebasing so merged instead)