docs: update MongoDB version requirement from 4.0 to 4.2 (#997)

* Initial plan

* Update MongoDB version requirement from 4.0 to 4.2

Co-authored-by: h3n4l <87714218+h3n4l@users.noreply.github.com>

* Simplify MongoDB version text to use "4.2 and above"

Co-authored-by: h3n4l <87714218+h3n4l@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: h3n4l <87714218+h3n4l@users.noreply.github.com>

Author: Copilot

content/blog/introducing-mongodb-support-in-bytebase.md

@@ -33,4 +33,4 @@ With [Bytebase 1.11.0](https://www.bytebase.com/changelog/bytebase-1-11-0), you
 
 ## Try MongoDB Yourself
 
-Bytebase supports MongoDB 4.0, 5.0, and 6.0. Please follow [installation guide](https://docs.bytebase.com/get-started/deploy-with-docker) to try it out. You can also join our [discord](https://discord.gg/huyw7gRsyA) to discuss all things Bytebase, share your feedback, and get help from the community.
+Bytebase supports MongoDB 4.2 and above. Please follow [installation guide](https://docs.bytebase.com/get-started/deploy-with-docker) to try it out. You can also join our [discord](https://discord.gg/huyw7gRsyA) to discuss all things Bytebase, share your feedback, and get help from the community.

docs/introduction/supported-databases.mdx

@@ -17,7 +17,7 @@ Bytebase officially supports the following major versions for each supported dat
 |                    | OceanBase                              | 3.x and above  |
 |                    | CockroachDB                            | 24.1 and above |
 |                    | Spanner                                | All versions   |
-| **NoSQL**          | MongoDB                                | 4.0 and above  |
+| **NoSQL**          | MongoDB                                | 4.2 and above  |
 |                    | Redis                                  | 6.0 and above  |
 |                    | Cassandra                              | 3.0 and above  |
 |                    | DocumentDB                             | All versions   |