BUG #18478: uuid-ossp extension is not installed with PostgreSQL 17 Beta 1

The following bug has been logged on the website:

Bug reference:      18478
Logged by:          Kedar Joshi
Email address:      kdar_joshi@yahoo.com
PostgreSQL version: 17beta1
Operating system:   Windows 10 64 Bit
Description:

Hi,
I was evaluating latest beta of PostgreSQL 17 and I noticed that uuid-ossp
extension is not installed in 'share\extension' directory during
installation. This results in following error while running `CREATE
EXTENSION IF NOT EXISTS "uuid-ossp";`.

```
ERROR:  extension "uuid-ossp" is not available
DETAIL:  Could not open extension control file "C:/Program
Files/PostgreSQL/17/share/extension/uuid-ossp.control": No such file or
directory.
HINT:  The extension must first be installed on the system where PostgreSQL
is running.
```

Thank you.