Modify Actix example to use OTLP ingestion for Jaeger

[cijothomas]

Related to this : #995
This PR modifies the Actix-Http example to use OTLP Exporter instead of Jaeger Exporter. The name of the project is still "actix-http".

There are quite a few examples with actix showing http/hyper/udp. It could be consolidated to a single one. If there is a desire to consolidate, I can propose a PR for that separately.

[codecov]

Codecov Report

Patch coverage: 5.9% and project coverage change: -0.9 ⚠️

Comparison is base (3597479) 57.2% compared to head (96747f6) 56.4%.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1022     +/-   ##
=======================================
- Coverage   57.2%   56.4%   -0.9%     
=======================================
  Files        143     144      +1     
  Lines      17464   17717    +253     
=======================================
- Hits        9999    9997      -2     
- Misses      7465    7720    +255     

Impacted Files	Coverage Δ
opentelemetry-api/src/global/metrics.rs	0.0% <0.0%> (ø)
opentelemetry-api/src/global/trace.rs	28.6% <0.0%> (ø)
opentelemetry-api/src/metrics/meter.rs	38.3% <0.0%> (ø)
opentelemetry-api/src/metrics/noop.rs	5.6% <0.0%> (ø)
opentelemetry-api/src/trace/mod.rs	87.2% <ø> (ø)
opentelemetry-api/src/trace/noop.rs	52.7% <0.0%> (ø)
...elemetry-contrib/src/trace/exporter/jaeger_json.rs	0.0% <0.0%> (ø)
opentelemetry-datadog/src/exporter/mod.rs	24.1% <0.0%> (ø)
opentelemetry-jaeger/src/exporter/config/mod.rs	82.0% <0.0%> (ø)
opentelemetry-prometheus/src/lib.rs	84.6% <ø> (ø)
... and 13 more

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[TommyCpp]

LGTM. Thanks

[TommyCpp]

Pushed a commit to fix the issue caused by #1018. I will open another PR to address the root case and revert the commit.

[cijothomas]

Pushed a commit to fix the issue caused by #1018. I will open another PR to address the root case and revert the commit.

Can you merge this please?