cockpit/spec: add obsoletes & fix release workflow

[croissanne]

With #2862 moving the artefact out of the checkout dir got reverted.

Adds an obsoletes for cockpit-composer.

[thozza]

LGTM. Looking at the diff made me wonder if the minimum required osbuild-composer version is correct? Since you mentioned that you've been waiting for the package search functionality which landed just recently.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.14%. Comparing base (e74675a) to head (4e3a05f).
Report is 4 commits behind head on main.

@@           Coverage Diff           @@
##             main    #2863   +/-   ##
=======================================
  Coverage   82.14%   82.14%           
=======================================
  Files         207      207           
  Lines       23181    23181           
  Branches     2274     2273    -1     
=======================================
  Hits        19042    19042           
  Misses       4112     4112           
  Partials       27       27           

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[croissanne]

LGTM. Looking at the diff made me wonder if the minimum required osbuild-composer version is correct? Since you mentioned that you've been waiting for the package search functionality which landed just recently.

oh good point, let me fix that