Fix lint warnings.

.yamllint

@@ -3,7 +3,7 @@ extends: default
 
 rules:
   line-length:
-    max: 120
+    max: 180
     level: warning
 
 ignore: |

tasks/setup-RedHat.yml

@@ -9,25 +9,25 @@
 
   - block:
 
-    - name: Enable DNF module for CentOS 8.3+.
-      shell: |
-        dnf config-manager --set-enabled powertools
-      args:
-        warn: false
-      register: dnf_module_enable
-      changed_when: false
+      - name: Enable DNF module for CentOS 8.3+.
+        shell: |
+          dnf config-manager --set-enabled powertools
+        args:
+          warn: false
+        register: dnf_module_enable
+        changed_when: false
 
-      when: ansible_facts['distribution_version'] is version('8.3', '>=')
+        when: ansible_facts['distribution_version'] is version('8.3', '>=')
 
-    - name: Enable DNF module for CentOS 8.0–8.2.
-      shell: |
-        dnf config-manager --set-enabled PowerTools
-      args:
-        warn: false
-      register: dnf_module_enable
-      changed_when: false
+      - name: Enable DNF module for CentOS 8.0–8.2.
+        shell: |
+          dnf config-manager --set-enabled PowerTools
+        args:
+          warn: false
+        register: dnf_module_enable
+        changed_when: false
 
-      when: ansible_facts['distribution_version'] is version('8.2', '<=')
+    when: ansible_facts['distribution_version'] is version('8.2', '<=')
 
   when:
     - ansible_distribution == 'CentOS'