chore(deps): autoupdate pre-commit hooks (#560)

* chore(deps): autoupdate pre-commit hooks

* fix(chore): update file-contents-sorter args.

The combination of `--unique` and `--ignore-case` options in the
`file-contents-sorter` has been disable due to non-deterministic
behaviour. We retain the `--ignore-case` option as we are less
concerned with duplicates in the spell check dictionaries than we
are with easily identifying mixed-case words.

---------

Co-authored-by: gchq-write-contents-and-pr[bot] <164903853+gchq-write-contents-and-pr[bot]@users.noreply.github.com>
Co-authored-by: tm91236 <[email protected]>

Author: gchq-write-contents-and-pr[bot]

.pre-commit-config.yaml

@@ -7,7 +7,7 @@ default_stages:
   - pre-merge-commit
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v5.0.0
+    rev: v6.0.0
     hooks:
       # Reject commits that add large files (coverage.xml, for example)
       # Consider adjusting kB limit
@@ -41,7 +41,6 @@ repos:
         files: ^\.cspell/.+\.txt$
         args:
           - --ignore-case
-          - --unique
         fail_fast: true
   - repo: https://github.com/pre-commit/pygrep-hooks
     rev: v1.10.0
@@ -59,7 +58,7 @@ repos:
       # No tabs, only spaces
       - id: forbid-tabs
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.12.7
+    rev: v0.12.8
     hooks:
       # Run the formatter.
       - id: ruff-format