[apache#4745] fix(docs): Update the link address in DISCLAIMER_WIP.txt (

apache#4748)

### What changes were proposed in this pull request?

Update the link address in DISCLAIMER_WIP.txt

### Why are the changes needed?

The original link is not correct.

Fix: apache#4745 

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

N/A

DISCLAIMER_WIP.txt

@@ -3,4 +3,4 @@ Apache Gravitino is an effort undergoing incubation at The Apache Software Found
 Some of the incubating project’s releases may not be fully compliant with ASF policy and while we have documented the licensing of all code in detail, we know that currently our release would:
 - Contains code that may not be compatible with the Apache License
 
-If you are planning to incorporate this work into your product/project, please be aware that you will need to conduct a thorough licensing review to determine the overall implications of including this work. For the current status of this project through the Apache Incubator, visit: https://incubator.apache.org/projects/Apache Podling-Name.html
+If you are planning to incorporate this work into your product/project, please be aware that you will need to conduct a thorough licensing review to determine the overall implications of including this work. For the current status of this project through the Apache Incubator, visit: https://incubator.apache.org/projects/gravitino.html