chore(deps): update container image ghcr.io/miguelndecarvalho/speedtest-exporter to v3.5.3

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/miguelndecarvalho/speedtest-exporter	patch	v3.5.2 -> v3.5.3

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[github-actions]

Path: cluster/apps/monitoring/speedtest-exporter/helm-release.yaml

@@ -49,7 +49,7 @@
       enableServiceLinks: true
       containers:
         - name: speedtest-exporter
-          image: "ghcr.io/miguelndecarvalho/speedtest-exporter:v3.5.2"
+          image: "ghcr.io/miguelndecarvalho/speedtest-exporter:v3.5.3"
           imagePullPolicy: IfNotPresent
           env:
             - name: TZ