docs: minor update to otel (#1573)

To be merged alongside
sourcegraph/sourcegraph#9433

Author: andreeleuterio

docs/self-hosted/observability/opentelemetry.mdx

@@ -209,7 +209,7 @@ If you're looking for information about Sourcegraph's bundled Jaeger instance, h
 
 Refer to the [Jaeger](https://opentelemetry.io/docs/languages/js/exporters/#jaeger) documentation for options.
 
-If you must use your own Jaeger instance, and if the bundled otel-collector's basic configuration with the Jaeger OTel exporter enabled meets your needs, configure the otel-collector's startup command to `/bin/otelcol-sourcegraph --config=/etc/otel-collector/configs/jaeger.yaml`. Note that this requires the environment variable `$JAEGER_HOST` to be set on the otel-collector service / container:
+If you must use your own Jaeger instance, and if the bundled otel-collector's basic configuration with the Jaeger OTel exporter enabled meets your needs, configure the otel-collector's startup command to `/usr/bin/otelcol-sourcegraph --config=/etc/otel-collector/configs/jaeger.yaml`. Note that this requires the environment variable `$JAEGER_HOST` to be set on the otel-collector service / container:
 
 ```yaml
 # otel-collector config.yaml