Add Db2 plugin (#116190)

* Add new Db2 plugin

* Fix ID

* Fix ID

* Run `i18n-extract`

* Linting

* Fix ID

* Linting

* Rename plugin

* Fix i18n entry

* Run `yarn i18n-extract`

docs/sources/introduction/grafana-enterprise.md

@@ -87,6 +87,7 @@ With a Grafana Enterprise license, you also get access to premium data sources,
 - [CockroachDB](/grafana/plugins/grafana-cockroachdb-datasource)
 - [Databricks](/grafana/plugins/grafana-databricks-datasource)
 - [DataDog](/grafana/plugins/grafana-datadog-datasource)
+- [IBM Db2](/grafana/plugins/grafana-ibmdb2-datasource)
 - [Drone](/grafana/plugins/grafana-drone-datasource)
 - [DynamoDB](/grafana/plugins/grafana-dynamodb-datasource/)
 - [Dynatrace](/grafana/plugins/grafana-dynatrace-datasource)