docs: fix broken MAAS API auth link (#9504)

* docs: fix broken MAAS API auth link

* Apply suggestion from @brent-eritou

* ci: auto-formatting prettier issues

---------

Co-authored-by: brent-eritou <[email protected]>
(cherry picked from commit ae78286)

Author: brent-eritou

docs/docs-content/clusters/pcg/deploy-pcg/maas.md

@@ -66,8 +66,8 @@ The following system requirements must be met to install a PCG in MAAS:
   For production environments, we recommend using three nodes, each with 100 GiB of storage, as nodes can exhaust the 60
   GiB storage with prolonged use. If you initially set up the gateway with one node, you can resize it later.
 
-- An active MAAS API key. Refer to the [Authenticating to the MAAS API](https://maas.io/docs/api) guide to learn more
-  about how to create an API key.
+- An active MAAS API key. Refer to the [Authenticating to the MAAS API](https://canonical.com/maas/docs) guide to learn
+  more about how to create an API key.
 
 - The DNS server that the PCG installer will use must be able to resolve the DNS names of machines that MAAS deploys so
   it can connect to them. The default setup is to use the MAAS server as the DNS server for any bare metal servers that