Run tests on PRs and skip build

Signed-off-by: Frantisek Lachman <[email protected]>

Author: lachmanfrantisek

.packit.yaml

@@ -1,5 +1,4 @@
 ---
-packit_instances: ["prod", "stg"]
 specfile_path: hello.spec
 files_to_sync:
   - .packit.yaml
@@ -11,11 +10,6 @@ downstream_package_name: hello
 # current_version_command: ["python3", "setup.py", "--version"]
 # create_tarball_command: ["python3", "setup.py", "sdist", "--dist-dir", "."]
 jobs:
-- job: copr_build
-  trigger: pull_request
-  targets:
-  - fedora-stable-x86_64
-  - fedora-rawhide-x86_64
 
 - job: copr_build
   trigger: release
@@ -31,8 +25,8 @@ jobs:
 - job: tests
   trigger: pull_request
   targets:
-  - fedora-stable-x86_64
-  - fedora-rawhide-x86_64
+  - centos-stream-9-x86_64
+  skip_build: true
 
 - job: propose_downstream
   trigger: release