[FA] Set display_priority in cassandra spec.yaml (DataDog#23274)

* Set display_priority in cassandra spec.yaml based on field usage

* Add changelog entry for cassandra

Author: coignetp

cassandra/assets/configuration/spec.yaml

@@ -9,6 +9,7 @@ files:
   - template: instances
     options:
     - name: cassandra_aliasing
+      display_priority: 1
       description: |
         Must be set to true to comply with CASSANDRA-4009.
         Learn more: https://issues.apache.org/jira/browse/CASSANDRA-4009

cassandra/changelog.d/23274.fixed

@@ -0,0 +1 @@
+Re-order configuration fields based on real-world usage data.

cassandra/datadog_checks/cassandra/data/conf.yaml.example

@@ -53,22 +53,22 @@ init_config:
 #
 instances:
 
+    ## @param cassandra_aliasing - boolean - required
+    ## Must be set to true to comply with CASSANDRA-4009.
+    ## Learn more: https://issues.apache.org/jira/browse/CASSANDRA-4009
+    #
+  - cassandra_aliasing: true
+
     ## @param host - string - required
     ## JMX hostname to connect to.
     #
-  - host: localhost
+    host: localhost
 
     ## @param port - integer - required
     ## JMX port to connect to.
     #
     port: 7199
 
-    ## @param cassandra_aliasing - boolean - required
-    ## Must be set to true to comply with CASSANDRA-4009.
-    ## Learn more: https://issues.apache.org/jira/browse/CASSANDRA-4009
-    #
-    cassandra_aliasing: true
-
     ## @param user - string - optional
     ## User to use when connecting to JMX.
     #