ci: Run dnf update in packit tests

The daily builds copr repository is enabled after installing the
packages so we need to run an update to get the latest version of
libblockdev.

plans/tests.fmf

@@ -10,11 +10,20 @@ prepare:
     script:
       - sudo dnf install -y 'dnf-command(copr)'
       - sudo dnf copr enable -y @storage/blivet-daily
+      - rpm -qq libblockdev
+      - rpm -qq python3-blockdev
+      - sudo dnf clean all
+      - sudo dnf -y update --refresh
+      - rpm -qq libblockdev
+      - rpm -qq python3-blockdev
+      - sudo dnf info libblockdev
+      - sudo dnf -y update libblockdev -d 10
+      - sudo dnf -y install libblockdev-3.1.1-99.20240814064123645242.master.140.g288c2e53.fc40
 
   - name: ansible
     how: ansible
     playbook: misc/install-test-dependencies.yml
 
 execute:
     how: tmt
-    script: sudo make test
+    script: sudo make check