Add @opentelemetry/otlp-transformer as direct dependency (#155)

*Issue #, if available:*

`@opentelemetry/otlp-transformer` should be a direct dependency because
of it's usage in the package here:
-
https://github.com/aws-observability/aws-otel-js-instrumentation/blob/v0.5.0/aws-distro-opentelemetry-node-autoinstrumentation/src/otlp-udp-exporter.ts#L7

Currently it is brought in as an indirect dependency from
`@opentelemetry/sdk-node`, `@opentelemetry/exporter-trace-otlp-proto`,
...

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Author: jj22ee

aws-distro-opentelemetry-node-autoinstrumentation/package.json

@@ -103,6 +103,7 @@
     "@opentelemetry/id-generator-aws-xray": "1.2.2",
     "@opentelemetry/instrumentation": "0.53.0",
     "@opentelemetry/instrumentation-aws-sdk": "0.44.0",
+    "@opentelemetry/otlp-transformer": "0.53.0",
     "@opentelemetry/propagator-aws-xray": "1.26.0",
     "@opentelemetry/resource-detector-aws": "1.6.1",
     "@opentelemetry/resources": "1.26.0",