distro/tests: fix file permissions set by ansible

Ansible switched default file perm to 600 from more permissive 666. Add
file mode explicitly to avoid issues.

distro/tests/ansible-roles/knot_resolver/tasks/test_doh.yaml

@@ -5,4 +5,5 @@
     url: https://127.0.0.1:44353/doh?dns=1Y0BAAABAAAAAAAACWxvY2FsaG9zdAAAAQAB
     sha256sum: e5c2710e6ecb78c089ab608ad5861b87be0d1c623c4d58b4eee3b21c06aa2008
     dest: /tmp/doh_test
+    mode: 0644
     validate_certs: false

distro/tests/ansible-roles/obs_repos/tasks/CentOS.yaml

@@ -9,4 +9,5 @@
   get_url:
     url: "{{ obs_repofile_url }}"
     dest: /etc/yum.repos.d/home:CZ-NIC:{{ item }}.repo
+    mode: 0644
   with_items: "{{ repos }}"

distro/tests/ansible-roles/obs_repos/tasks/Debian.yaml

@@ -4,6 +4,7 @@
   get_url:
     url: https://gitlab.nic.cz/knot/knot-resolver-release/raw/master/cznic-obs.gpg.asc
     dest: /etc/apt/trusted.gpg.d/cznic-obs.gpg.asc
+    mode: 0644
 
 - name: Add OBS repo(s)
   apt_repository:

distro/tests/ansible-roles/obs_repos/tasks/Fedora.yaml

@@ -4,4 +4,5 @@
   get_url:
     url: "{{ obs_repofile_url }}"
     dest: "/etc/yum.repos.d/home:CZ-NIC:{{ item }}.repo"
+    mode: 0644
   with_items: "{{ repos }}"