Update SQL Exporter to 0.20.0

Author: goat-ssh

CHANGES.rst

@@ -5,6 +5,8 @@ Changelog
 Unreleased
 ----------
 
+* Bumped sql_exporter to ``0.20.0``
+
 * Added support for running CrateDB on Red Hat OpenShift Container Platform.
   When ``CLOUD_PROVIDER`` is set to ``openshift``, the operator will:
 

crate/operator/config.py

@@ -167,7 +167,7 @@ class Config:
     PROMETHEUS_PORT: int = 8080
 
     #: The sql_exporter image to use
-    SQL_EXPORTER_IMAGE: str = "burningalchemist/sql_exporter:0.18.4"
+    SQL_EXPORTER_IMAGE: str = "burningalchemist/sql_exporter:0.20.0"
 
     #: Name of the secret containing credentials to access the source
     #: backup when restoring a snapshot.