Add Otel SDK dependency in Instana composer (open-telemetry#397)

* chore: update dependabot configuration [skip ci]

* Added otel SDk composer dependency

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: HeenaBansal20

src/Exporter/Instana/composer.json

@@ -11,6 +11,7 @@
     "require": {
         "php": "^8.1",
         "open-telemetry/api": "^1.1",
+        "open-telemetry/sdk": "^1.1",
         "guzzlehttp/guzzle": "^7.4.5"
     },
     "autoload": {