Drop STI and use tmt instead

Resolves: rhbz#2382970
(cherry picked from Fedora commit 40bf4a63bbff12ca93ca36b78a2f8ae28cc57933)

.fmf/version

@@ -0,0 +1 @@
+1

plan.fmf

@@ -0,0 +1,24 @@
+execute:
+  how: tmt
+
+discover:
+  how: shell
+  url: https://gitlab.com/redhat/centos-stream/tests/python.git
+  tests:
+    - name: marshalparser_compatibility312
+      path: /marshalparser
+      test: VERSION=3.12 SAMPLE=200 ./test_marshalparser_compatibility.sh
+    - name: marshalparser_compatibility314
+      path: /marshalparser
+      test: VERSION=3.14 SAMPLE=200 ./test_marshalparser_compatibility.sh
+prepare:
+  - name: Install dependencies
+    how: install
+    package:
+    - python3.12
+    - python3.14
+    - marshalparser
+    - dnf # for upgrade
+  - name: Update packages
+    how: shell
+    script: dnf upgrade -y

tests/tests.yml

@@ -1,28 +0,0 @@
----
-- hosts: localhost
-  tags:
-    - classic
-  tasks:
-    - dnf:
-        name: "*"
-        state: latest
-
-- hosts: localhost
-  roles:
-  - role: standard-test-basic
-    tags:
-    - classic
-    repositories:
-    - repo: "https://gitlab.com/redhat/centos-stream/tests/python.git"
-      dest: "python"
-    tests:
-    - marshalparser_compatibility312:
-        dir: python/marshalparser
-        run: VERSION=3.12 SAMPLE=200 test_marshalparser_compatibility.sh
-    - marshalparser_compatibility314:
-        dir: python/marshalparser
-        run: VERSION=3.14 SAMPLE=200 test_marshalparser_compatibility.sh
-    required_packages:
-    - python3.12
-    - python3.14
-    - marshalparser