Changelog fix (Azure#33489)

### Packages impacted by this PR


### Issues associated with this PR


### Describe the problem that is addressed by this PR


### What are the possible designs available to address the problem? If
there are more than one possible design, why was the one in this PR
chosen?


### Are there test cases added in this PR? _(If not, why?)_


### Provide a list of related PRs _(if any)_


### Command used to generate this PR:**_(Applicable only to SDK release
request PRs)_

### Checklists
- [ ] Added impacted package name to the issue description
- [ ] Does this PR needs any fixes in the SDK Generator?** _(If so,
create an Issue in the
[Autorest/typescript](https://github.com/Azure/autorest.typescript)
repository and link it here)_
- [ ] Added a changelog (if necessary)

---------

Co-authored-by: Zachary King <[email protected]>

Author: ZachhK

sdk/ai/ai-projects/CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### Features Added
 
-- Adding azure functions and openai tool support
+- Adding Azure Functions and OpenAPI tool support
 - Upgrading core-lro package
 
 ### Bugs Fixed