upgrade otel version to v1.11.2

[kristinapathak]

Description: Upgrading otel versions to v1.11.2 and v0.34.0

• Had to fork otel Client logic, since it is no longer being exported: https://github.com/open-telemetry/opentelemetry-go/blob/4146bd1403be895f9c1b1193e1aa177039c32001/exporters/otlp/otlpmetric/otlpmetricgrpc/client.go#L73
• Moved the exporter to lightstep/sdk/metric/exporters/otlp/otlpmetric package to match the otel packages (they already moved their equivalent function into otlpmetric/internal so it doesn't actually match 😬 )

Link to tracking Issue: #303

Fixes #303.

Testing: < Describe what testing was performed and which tests were added.>

Documentation: < Describe the documentation added.>

[codecov-commenter]

Codecov Report

Base: 92.56% // Head: 87.42% // Decreases project coverage by -5.13% ⚠️

Coverage data is based on head (aea6cf6) compared to base (e82ff4c).
Patch coverage: 57.92% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #333      +/-   ##
==========================================
- Coverage   92.56%   87.42%   -5.14%     
==========================================
  Files          68       75       +7     
  Lines        3576     4128     +552     
==========================================
+ Hits         3310     3609     +299     
- Misses        201      448     +247     
- Partials       65       71       +6     

Impacted Files	Coverage Δ
...tstep/sdk/metric/exporters/otlp/internal/config.go	100.00% <ø> (ø)
...etric/exporters/otlp/internal/otlptest/otlptest.go	100.00% <ø> (+2.29%)	⬆️
...ic/exporters/otlp/otlpmetric/internal/oconf/tls.go	41.66% <ø> (ø)
...rs/otlp/otlpmetric/internal/transform/attribute.go	100.00% <ø> (ø)
...rters/otlp/otlpmetric/internal/transform/metric.go	97.01% <ø> (ø)
...ers/otlp/otlpmetric/internal/transform/resource.go	87.50% <ø> (ø)
...orters/otlp/otlpmetric/internal/otest/collector.go	20.48% <20.48%> (ø)
...tep/sdk/metric/internal/global/internal_logging.go	25.00% <25.00%> (ø)
...p/sdk/metric/exporters/otlp/otlpmetric/exporter.go	40.35% <40.35%> (ø)
...exporters/otlp/otlpmetric/otlpmetricgrpc/config.go	52.83% <52.83%> (ø)
... and 10 more

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