Fix linters in CI (#873)

SUMMARY
It seems that recent updates in linters break CI. Closes #874
ISSUE TYPE

Bugfix Pull Request

COMPONENT NAME
CI
ADDITIONAL INFORMATION

Reviewed-by: Mike Graves <mgraves@redhat.com>
Reviewed-by: Yuriy Novostavskiy

tests/integration/targets/k8s_manifest_url/tasks/main.yml

@@ -23,7 +23,7 @@
         - name: Update directory permissions
           file:
             path: "{{ manifests_dir.path }}"
-            mode: 0755
+            mode: '0755'
 
         - name: Create manifests files
           copy:

tests/integration/targets/lookup_kustomize/tasks/main.yml

@@ -45,7 +45,7 @@
     - name: make script as executable
       file:
         path: "{{ tmp_dir_path }}/install_kustomize.sh"
-        mode: 0755
+        mode: '0755'
 
     - name: Install kustomize
       command: "{{ tmp_dir_path }}/install_kustomize.sh"