chore(deps): bump python from 3.9-slim to 3.11-slim in /docker/metric…

…s-exporter (#545)

Bumps python from 3.9-slim to 3.11-slim.


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docker/metrics-exporter/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-slim AS build
+FROM python:3.11-slim AS build
 
 WORKDIR /usr/src/app