docs(config): add note about support to vendor-supported drivers (#6600)

Author: hassankhan

docs/content/Configuration/Databases/Firebolt.mdx

@@ -3,6 +3,13 @@ title: Firebolt
 permalink: /config/databases/firebolt
 ---
 
+<WarningBox>
+
+The driver for Firebolt is supported by its vendor. Please report any issues to
+their [Help Center][firebolt-help].
+
+</WarningBox>
+
 ## Prerequisites
 
 - The username/password for your [Firebolt][firebolt] account
@@ -35,5 +42,6 @@ CUBEJS_FIREBOLT_ENGINE_NAME=engine_name
 | `CUBEJS_DB_MAX_POOL`           | The maximum number of concurrent database connections to pool. Default is `20`      | A valid number                                                          |    ❌    |                                    ✅                                    |
 
 [firebolt]: https://www.firebolt.io/
+[firebolt-help]: https://help.firebolt.io/
 [ref-config-multiple-ds-decorating-env]:
   /config/multiple-data-sources#configuring-data-sources-with-environment-variables-decorated-environment-variables

docs/content/Configuration/Databases/Materialize.mdx

@@ -3,6 +3,13 @@ title: Materialize
 permalink: /config/databases/materialize
 ---
 
+<WarningBox>
+
+The driver for Materialize is supported by its vendor. Please report any issues
+to their [Slack][materialize-slack].
+
+</WarningBox>
+
 ## Prerequisites
 
 - The hostname for the [Materialize][materialize] database server
@@ -42,5 +49,6 @@ configure custom certificates, please check out [Enable SSL Connections to the
 Database][ref-recipe-enable-ssl].
 
 [materialize]: https://materialize.com/docs/
+[materialize-slack]: https://materialize.com/s/chat
 [ref-config-multiple-ds-decorating-env]:
   /config/multiple-data-sources#configuring-data-sources-with-environment-variables-decorated-environment-variables

docs/content/Configuration/Databases/QuestDB.mdx

@@ -3,6 +3,13 @@ title: QuestDB
 permalink: /config/databases/questdb
 ---
 
+<WarningBox>
+
+The driver for QuestDB is supported by its vendor. Please report any issues to
+their [Slack][questdb-slack].
+
+</WarningBox>
+
 ## Prerequisites
 
 - The hostname for the [QuestDB][questdb] database server
@@ -36,5 +43,6 @@ CUBEJS_DB_PASS=quest
 | `CUBEJS_DB_MAX_POOL` | The maximum number of concurrent database connections to pool. Default is `8`       | A valid number            |    ❌    |                                    ✅                                    |
 
 [questdb]: https://questdb.io/
+[questdb-slack]: https://slack.questdb.io/
 [ref-config-multiple-ds-decorating-env]:
   /config/multiple-data-sources#configuring-data-sources-with-environment-variables-decorated-environment-variables