Updates tag names for actions/functions operations (#586)

* Update operation tags generation

* Refactor operation tag generation

* Update unit tests

* Update integration test files

* Update release note

* Update src/Microsoft.OpenApi.OData.Reader/Operation/EdmOperationOperationHandler.cs

Co-authored-by: Andrew Omondi <[email protected]>

* Account for nullability

* Remove unnecessary code

---------

Co-authored-by: Andrew Omondi <[email protected]>

Author: irvinesunday

src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj

@@ -26,6 +26,7 @@
 		- Changed target framework to net8.0
 		- Adds support for retrieving collection of enum values from UpdateMethod property of UpdateRestrictions annotation #564
 		- Adds nullable to double schema conversions #581
+		- Updates tag names for actions/functions operations #585
 	</PackageReleaseNotes>
     <AssemblyName>Microsoft.OpenApi.OData.Reader</AssemblyName>
     <AssemblyOriginatorKeyFile>..\..\tool\Microsoft.OpenApi.OData.snk</AssemblyOriginatorKeyFile>