[UUF] Source link is incorrect

### Type of issue

Other (describe below)

### Description

The "Source:" links to the wrong file, the symbol is actually defined in https://github.com/dotnet/runtime/blob/1e5bae2e56180897c95ac3f9adaa5609d14d20b3/src/libraries/System.Private.CoreLib/src/System/Environment.cs

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.environment.is64bitprocess?view=net-9.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System/Environment.xml

### Document Version Independent Id

b118bcf1-7136-ee3c-773e-74146ea94b3d

### Article author

@dotnet-bot