chore(deps): update dependency cachetools to v6.2.6 (#825)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
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|---|---|---|---|
| cachetools | `==6.2.1` → `==6.2.6` |
![age](https://developer.mend.io/api/mc/badges/age/pypi/cachetools/6.2.6?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/cachetools/6.2.1/6.2.6?slim=true)
|

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Author: renovate-bot

requirements.txt

@@ -14,9 +14,9 @@ build==1.3.0 \
     # via
     #   -r requirements.in
     #   pip-tools
-cachetools==6.2.1 \
-    --hash=sha256:09868944b6dde876dfd44e1d47e18484541eaf12f26f29b7af91b26cc892d701 \
-    --hash=sha256:3f391e4bd8f8bf0931169baf7456cc822705f4e2a31f840d218f445b9a854201
+cachetools==6.2.6 \
+    --hash=sha256:16c33e1f276b9a9c0b49ab5782d901e3ad3de0dd6da9bf9bcd29ac5672f2f9e6 \
+    --hash=sha256:8c9717235b3c651603fff0076db52d6acbfd1b338b8ed50256092f7ce9c85bda
     # via google-auth
 certifi==2025.10.5 \
     --hash=sha256:0f212c2744a9bb6de0c56639a6f68afe01ecd92d91f14ae897c4fe7bbeeef0de \