nosearch: use manifest instead of tagging

test/check-application

@@ -3040,9 +3040,16 @@ class TestApplication(testlib.MachineCase):
         """)
 
         container_name = "localhost:80/my-busybox"
-        m.execute(f"podman tag {IMG_BUSYBOX} {container_name}; podman push {container_name}")
+        m.execute(f"""
+            podman manifest create my-busybox
+            podman manifest add my-busybox {IMG_BUSYBOX}
+            podman manifest push my-busybox {container_name}
+        """)
         # Untag busybox image which duplicates the image we are about to download
-        m.execute(f"podman rmi -f {IMG_BUSYBOX} localhost:80/my-busybox")
+        m.execute(f"""
+            podman manifest rm localhost/my-busybox
+            podman rmi -f {IMG_BUSYBOX}
+        """)
 
         self.login()