name[casing]: now applies only to scripts supporting uppercase (#2347)

Fixes: #2340

examples/playbooks/task-name-lowercase.yml

@@ -5,3 +5,6 @@
     - name: this task has a name is not correctly capitalized
       ansible.builtin.command: echo "Hello World"
       changed_when: false
+    - name: 测试 should not trigger name[case] rule!
+      ansible.builtin.command: echo "Hello World"
+      changed_when: false

src/ansiblelint/rules/name.md

@@ -1,23 +1,27 @@
 ## name
 
-This rule identifies several problems related to naming of tasks and plays.
-This is important because these names are the primary way to identify executed
-operations on console, logs or web interface. Their role is also to document
-what Ansible is supposed to do.
+This rule identifies several problems related to the naming of tasks and plays.
+This is important because these names are the primary way to **identify** and
+**document** executed operations on console, logs or web interface.
 
 This rule can produce messages such:
 
-- `name[casing]` - All names should start with an uppercase letter.
+- `name[casing]` - All names should start with an uppercase letter for
+  languages that support it.
 - `name[missing]` - All tasks should be named.
 - `name[play]` - All plays should be named.
 
+If you want to ignore some of the messages above, you can add any of them to
+the `ignore_list`.
+
 ### Problematic code
 
 ```yaml
 ---
-- hosts: localhost
+- hosts: localhost # <-- playbook missing a name key
   tasks:
-    - ansible.builtin.command: touch /tmp/.placeholder
+    - name: create placefolder file # <-- not starting with a capital letter
+      ansible.builtin.command: touch /tmp/.placeholder
 ```
 
 ### Correct code

src/ansiblelint/rules/name.py

@@ -69,7 +69,10 @@ def matchtask(
     def _check_name(
         self, name: str, lintable: Lintable | None, linenumber: int
     ) -> MatchError | None:
-        if not name[0].isupper():
+        # This rules applies only to scripts that do have uppercase and
+        # lowercase letter, so we ignore anything else. On Unicode islower()
+        # is not the opposite of islower()
+        if name[0].isalpha() and name[0].islower() and not name[0].isupper():
             return self.create_matcherror(
                 message="All names should start with an uppercase letter.",
                 linenumber=linenumber,