docs(_ext) Fix mypy ClassVar errors in Pygments lexers

why: mypy treated `filenames: list[str]` as an instance variable,
conflicting with Lexer base class's ClassVar declaration.
what:
- Add `import typing as t` to both lexer modules
- Annotate `filenames` as `t.ClassVar[list[str]]` in
  VcspullOutputLexer and VcspullConsoleLexer
- Remove now-redundant `# noqa: RUF012` suppression comments

Author: tony

docs/_ext/vcspull_console_lexer.py

@@ -7,6 +7,7 @@
 from __future__ import annotations
 
 import re
+import typing as t
 
 from pygments.lexer import Lexer, do_insertions, line_re  # type: ignore[attr-defined]
 from pygments.lexers.shell import BashLexer
@@ -33,7 +34,7 @@ class VcspullConsoleLexer(Lexer):
 
     name = "Vcspull Console"
     aliases = ["vcspull-console"]  # noqa: RUF012
-    filenames: list[str] = []  # noqa: RUF012
+    filenames: t.ClassVar[list[str]] = []
     mimetypes = ["text/x-vcspull-console"]  # noqa: RUF012
 
     _venv = re.compile(r"^(\([^)]*\))(\s*)")

docs/_ext/vcspull_output_lexer.py

@@ -6,6 +6,8 @@
 
 from __future__ import annotations
 
+import typing as t
+
 from pygments.lexer import RegexLexer, bygroups
 from pygments.token import (
     Comment,
@@ -45,7 +47,7 @@ class VcspullOutputLexer(RegexLexer):
 
     name = "vcspull Output"
     aliases = ["vcspull-output", "vcspull"]  # noqa: RUF012
-    filenames: list[str] = []  # noqa: RUF012
+    filenames: t.ClassVar[list[str]] = []
     mimetypes = ["text/x-vcspull-output"]  # noqa: RUF012
 
     tokens = {  # noqa: RUF012