Different updates, fresh repositories, see list

* new archives of mos-spt, cfg-checker, si-tests
* run tempest full with concurrency 4
* updated mos-spt configuration
* fixed manual_create_signed_images.sh script
* improved prepare.sh script

Related-PROD: PROD-37187
Change-Id: I41a34026f7cd593145173ff330e19c59bb8325d3
diff --git a/k8s/workspace/run-openstack-func-full.sh b/k8s/workspace/run-openstack-func-full.sh
index 52bec02..a567ab2 100644
--- a/k8s/workspace/run-openstack-func-full.sh
+++ b/k8s/workspace/run-openstack-func-full.sh
@@ -27,7 +27,7 @@
 cat <<'EOF' >artifacts/test_scheme.yaml
 ---
 smoke: false
-concurrency: 8
+concurrency: 4
 blacklist-file: /etc/tempest/test-blacklist
 enabled: true
 fail_on_test: true