chore(deps): update dependency cachetools to v6.2.0 (#747)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [cachetools](https://redirect.github.com/tkem/cachetools) | `==6.1.0` -> `==6.2.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/cachetools/6.2.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/cachetools/6.1.0/6.2.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>tkem/cachetools (cachetools)</summary>

### [`v6.2.0`](https://redirect.github.com/tkem/cachetools/blob/HEAD/CHANGELOG.rst#v620-2025-08-25)

[Compare Source](https://redirect.github.com/tkem/cachetools/compare/v6.1.0...v6.2.0)

\===================

- Improve general `RRCache` performance by storing cache keys in an
  additional sequence container.  Note that this will increase memory
  consumption.

- Add more unit tests.

</details>

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Author: renovate-bot

requirements.txt

@@ -14,9 +14,9 @@ build==1.3.0 \
     # via
     #   -r requirements.in
     #   pip-tools
-cachetools==6.1.0 \
-    --hash=sha256:1c7bb3cf9193deaf3508b7c5f2a79986c13ea38965c5adcff1f84519cf39163e \
-    --hash=sha256:b4c4f404392848db3ce7aac34950d17be4d864da4b8b66911008e430bc544587
+cachetools==6.2.0 \
+    --hash=sha256:1c76a8960c0041fcc21097e357f882197c79da0dbff766e7317890a65d7d8ba6 \
+    --hash=sha256:38b328c0889450f05f5e120f56ab68c8abaf424e1275522b138ffc93253f7e32
     # via google-auth
 certifi==2025.8.3 \
     --hash=sha256:e564105f78ded564e3ae7c923924435e1daa7463faeab5bb932bc53ffae63407 \