Add Otel SDK dependency in Instana composer

[HeenaBansal20]

Added open-telemetry/sdk dependency in Instana exporter composer .

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.48%. Comparing base (e4b36e1) to head (e6855d6).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #397   +/-   ##
=========================================
  Coverage     82.48%   82.48%           
  Complexity     2009     2009           
=========================================
  Files           144      144           
  Lines          8329     8329           
=========================================
  Hits           6870     6870           
  Misses         1459     1459           

Flag	Coverage Δ
Aws	92.59% <ø> (ø)
Context/Swoole	0.00% <ø> (ø)
Exporter/Instana	49.42% <ø> (ø)
Instrumentation/AwsSdk	81.13% <ø> (ø)
Instrumentation/CakePHP	20.40% <ø> (ø)
Instrumentation/CodeIgniter	73.55% <ø> (ø)
Instrumentation/Curl	90.42% <ø> (ø)
Instrumentation/Doctrine	91.98% <ø> (ø)
Instrumentation/ExtAmqp	88.48% <ø> (ø)
Instrumentation/ExtRdKafka	86.11% <ø> (ø)
Instrumentation/Guzzle	75.58% <ø> (ø)
Instrumentation/HttpAsyncClient	78.04% <ø> (ø)
Instrumentation/IO	70.68% <ø> (ø)
Instrumentation/Laravel	69.68% <ø> (ø)
Instrumentation/MongoDB	74.28% <ø> (ø)
Instrumentation/MySqli	95.81% <ø> (ø)
Instrumentation/OpenAIPHP	87.21% <ø> (ø)
Instrumentation/PDO	94.21% <ø> (ø)
Instrumentation/Psr14	76.47% <ø> (ø)
Instrumentation/Psr15	89.15% <ø> (ø)
Instrumentation/Psr16	97.50% <ø> (ø)
Instrumentation/Psr18	77.46% <ø> (ø)
Instrumentation/Psr3	67.01% <ø> (ø)
Instrumentation/Psr6	97.61% <ø> (ø)
Instrumentation/ReactPHP	99.45% <ø> (ø)
Instrumentation/Slim	86.11% <ø> (ø)
Instrumentation/Symfony	84.74% <ø> (ø)
Logs/Monolog	100.00% <ø> (ø)
Propagation/Instana	98.11% <ø> (ø)
Propagation/ServerTiming	100.00% <ø> (ø)
Propagation/TraceResponse	100.00% <ø> (ø)
ResourceDetectors/Azure	91.66% <ø> (ø)
ResourceDetectors/Container	93.02% <ø> (ø)
ResourceDetectors/DigitalOcean	100.00% <ø> (ø)
Sampler/RuleBased	33.51% <ø> (ø)
Shims/OpenTracing	92.45% <ø> (ø)
Symfony	87.81% <ø> (ø)
Utils/Test	87.53% <ø> (ø)

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[HeenaBansal20]

@brettmc , Thanks for accepting the previous PR and releasing the initial tag for the exporter.
This is a followup small PR to add the SDK dependency in Instana exporter composer package.
Please review and merge and create the new /updated label for the new package dependencies.
Thank you so much for your support.