Merge branch 'renovate/edu.ucar-cdm-4.x' into 'renovate-updates'

Update dependency edu.ucar:cdm to v4.6.21

See merge request !130

pom.xml

@@ -63,7 +63,7 @@
         <dependency>
             <groupId>edu.ucar</groupId>
             <artifactId>cdm</artifactId>
-            <version>4.6.10</version>
+            <version>4.6.21</version>
         </dependency>
         <dependency>
             <groupId>org.flywaydb</groupId>