Updates the default adoprovider and description for sqlserver (DataDog#21364)

* Updates the default adoprovider and description for sqlserver

* sync config file

* Add changelog

* sync config models

---------

Co-authored-by: Eric Weaver <eweaver755@gmail.com>
Co-authored-by: Eric Weaver <eric.weaver@datadoghq.com>

Author: joeykelroy

sqlserver/assets/configuration/spec.yaml

@@ -482,14 +482,13 @@ files:
           type: string
     - name: adoprovider
       description: |
-        Choose the ADO provider.  Note that the (default) provider
-        SQLOLEDB is being deprecated.  To use the newer MSOLEDBSQL
+        Choose the ADO provider.  Note that SQLOLEDB is deprecated.  To use the MSOLEDBSQL
         provider, set the adoprovider to "MSOLEDBSQL" below or "MSOLEDBSQL19" for version 19 of the driver.
         You will also need to download the new provider from
         https://docs.microsoft.com/en-us/sql/connect/oledb/oledb-driver-for-sql-server?view=sql-server-2017
       value:
         type: string
-        example: SQLOLEDB
+        example: MSOLEDBSQL
     - name: connector
       description: |
         Change the connection method from adodbapi (the default) to

sqlserver/changelog.d/21364.fixed

@@ -0,0 +1 @@
+Clarifies the default ADO provider in conf.yaml.example

sqlserver/datadog_checks/sqlserver/config_models/defaults.py

@@ -13,7 +13,7 @@ def shared_propagate_agent_tags():
 
 
 def instance_adoprovider():
-    return 'SQLOLEDB'
+    return 'MSOLEDBSQL'
 
 
 def instance_autodiscovery_db_service_check():

sqlserver/datadog_checks/sqlserver/data/conf.yaml.example

@@ -328,14 +328,13 @@ instances:
     #
     # db_fragmentation_object_names: []
 
-    ## @param adoprovider - string - optional - default: SQLOLEDB
-    ## Choose the ADO provider.  Note that the (default) provider
-    ## SQLOLEDB is being deprecated.  To use the newer MSOLEDBSQL
+    ## @param adoprovider - string - optional - default: MSOLEDBSQL
+    ## Choose the ADO provider.  Note that SQLOLEDB is deprecated.  To use the MSOLEDBSQL
     ## provider, set the adoprovider to "MSOLEDBSQL" below or "MSOLEDBSQL19" for version 19 of the driver.
     ## You will also need to download the new provider from
     ## https://docs.microsoft.com/en-us/sql/connect/oledb/oledb-driver-for-sql-server?view=sql-server-2017
     #
-    # adoprovider: SQLOLEDB
+    # adoprovider: MSOLEDBSQL
 
     ## @param connector - string - optional - default: adodbapi
     ## Change the connection method from adodbapi (the default) to