docs: update the cpp-linter-hooks examples to v1.6.1 (#74)

Moves every `.pre-commit-config.yaml` example from `rev: v1.6.0` to
`rev: v1.6.1`:

- Get started
- Why cpp-linter
- The four blog posts that show the hooks

Nothing else on the site depends on the v1.6.0 behavior.

Merge this after cpp-linter-hooks v1.6.1 is published
(cpp-linter/cpp-linter-hooks#290 goes first). Until the tag exists,
`rev: v1.6.1` does not resolve.

Author: shenxianpeng

docs/blog/posts/2026-09-12-moving-to-cpp-linter.md

@@ -145,7 +145,7 @@ exists:
 ```yaml title=".pre-commit-config.yaml"
 repos:
   - repo: https://github.com/cpp-linter/cpp-linter-hooks
-    rev: v1.6.0
+    rev: v1.6.1
     hooks:
       - id: clang-format
         args: [--style=file, --version=21]

docs/blog/posts/2026-09-12-one-clang-version-everywhere.md

@@ -53,7 +53,7 @@ argument:
 ```yaml title=".pre-commit-config.yaml"
 repos:
   - repo: https://github.com/cpp-linter/cpp-linter-hooks
-    rev: v1.6.0
+    rev: v1.6.1
     hooks:
       - id: clang-format
         args: [--style=file, --version=21]

docs/blog/posts/2026-09-20-clang-format-pre-commit-hook.md

@@ -54,7 +54,7 @@ Add the hook to the repository:
 ```yaml title=".pre-commit-config.yaml"
 repos:
   - repo: https://github.com/cpp-linter/cpp-linter-hooks
-    rev: v1.6.0
+    rev: v1.6.1
     hooks:
       - id: clang-format
         args: [--style=file, --version=21]

docs/blog/posts/2026-09-20-clang-tidy-pull-requests-github-actions.md

@@ -247,7 +247,7 @@ findings never reach the pull request:
 ```yaml title=".pre-commit-config.yaml"
 repos:
   - repo: https://github.com/cpp-linter/cpp-linter-hooks
-    rev: v1.6.0
+    rev: v1.6.1
     hooks:
       - id: clang-tidy
         args: [--checks=.clang-tidy, --version=21]

docs/getting-started.md

@@ -71,7 +71,7 @@ pip-install the clang-format and clang-tidy version you pin:
 ```yaml title=".pre-commit-config.yaml"
 repos:
   - repo: https://github.com/cpp-linter/cpp-linter-hooks
-    rev: v1.6.0
+    rev: v1.6.1
     hooks:
       - id: clang-format
         args: [--style=file, --version=21]

docs/why-cpp-linter.md

@@ -164,7 +164,7 @@ annotations only; if most of yours come from forks, stay with the split workflow
 
 ```yaml title="After"
 - repo: https://github.com/cpp-linter/cpp-linter-hooks
-  rev: v1.6.0
+  rev: v1.6.1
   hooks:
     - id: clang-format
       args: [--style=file, --version=21]