We no longer use openSUSE_Leap_15.6 for Leap repositories. Nowadays it's just
15.6 (in fact since 15.3 I believe).


```
lkocman@localhost:~> sudo zypper ar obs://devel:tools:ide:vscode
devel_tools_ide_vscode
[sudo] password for root: 
Guessed: platform = openSUSE_Leap_$releasever
Adding repository 'devel_tools_ide_vscode'
................................................................................................................................................................[done]
Repository 'devel_tools_ide_vscode' successfully added

URI         :
https://download.opensuse.org/repositories/devel:/tools:/ide:/vscode/openSUSE_Leap_15.6
Enabled     : Yes
GPG Check   : Yes
Autorefresh : No
Priority    : 99 (default priority)

Repository priorities are without effect. All enabled repositories share the
same priority.

```

Result returns 404
https://download.opensuse.org/repositories/devel:/tools:/ide:/vscode/openSUSE_Leap_15.6

as the url should be
https://download.opensuse.org/repositories/devel:/tools:/ide:/vscode/15.6

Bug ID	1219148
Summary	zypper ar obs:// doesn't work properly on newer Leap releases
Classification	openSUSE
Product	openSUSE Distribution
Version	Leap 15.6
Hardware	Other
OS	Other
Status	NEW
Severity	Normal
Priority	P5 - None
Component	libzypp
Assignee	zypp-maintainers@suse.de
Reporter	lubos.kocman@suse.com
QA Contact	qa-bugs@suse.de
Target Milestone	---
Found By	---
Blocker	---