docs: fix jaeger command (#9797)

Author: hacdias

docs/environment-variables.md

@@ -219,7 +219,7 @@ $ docker run --rm -it --name jaeger \
     -p 5778:5778 \
     -p 16686:16686 \
     -p 14268:14268 \
-    -p 14268:14269 \
+    -p 14269:14269 \
     -p 14250:14250 \
     -p 9411:9411 \
     jaegertracing/all-in-one