Adjust STI tests for c10s

centpkg-minimal is present in both EPEL 10 and in
testing-farm-tag-repository, whose priority makes is impossible to
easily update, hence the direct link to the desired version of RPM.
Asked for the update in the testing-farm-tag-repository to make it work
seamlessly:
https://gitlab.com/testing-farm/general/-/issues/91

tests/tests.yml

@@ -5,10 +5,12 @@
     tags:
     - classic
     repositories:
-    - repo: "https://src.fedoraproject.org/rpms/pyproject-rpm-macros.git"
+    - repo: "https://gitlab.com/redhat/centos-stream/rpms/pyproject-rpm-macros.git"
       dest: "pyproject-rpm-macros"
-    - repo: "https://src.fedoraproject.org/rpms/python-rpm-generators.git"
+      version: "c10s"
+    - repo: "https://gitlab.com/redhat/centos-stream/rpms/python-rpm-generators.git"
       dest: "python-rpm-generators"
+      version: "c10s"
     tests:
     - pyproject_pytest:
         dir: pyproject-rpm-macros/tests
@@ -29,7 +31,8 @@
         dir: .
         run: ./smoke/runtest.sh
     required_packages:
-    - fedpkg-minimal
+    - 'https://dl.fedoraproject.org/pub/epel/epel-release-latest-10.noarch.rpm'
+    - 'https://kojipkgs.fedoraproject.org/packages/centpkg-minimal/2.1.0/5.el10_0/noarch/centpkg-minimal-2.1.0-5.el10_0.noarch.rpm'
     - mock
     - python3-packaging
     - python3-pip