build(deps): bump certifi from 2025.6.15 to 2025.7.14 in /docs

---
updated-dependencies:
- dependency-name: certifi
  dependency-version: 2025.7.14
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/requirements.txt

@@ -17,9 +17,9 @@ babel==2.17.0 \
     --hash=sha256:0c54cffb19f690cdcc52a3b50bcbf71e07a808d1c80d549f2459b9d2cf0afb9d \
     --hash=sha256:4d0b53093fdfb4b21c92b5213dba5a1b23885afa8383709427046b21c366e5f2
     # via sphinx
-certifi==2025.6.15 \
-    --hash=sha256:2e0c7ce7cb5d8f8634ca55d2ba7e6ec2689a2fd6537d8dec1296a477a4910057 \
-    --hash=sha256:d747aa5a8b9bbbb1bb8c22bb13e22bd1f18e9796defa16bab421f7f7a317323b
+certifi==2025.7.14 \
+    --hash=sha256:6b31f564a415d79ee77df69d757bb49a5bb53bd9f756cbbe24394ffd6fc1f4b2 \
+    --hash=sha256:8ea99dbdfaaf2ba2f9bac77b9249ef62ec5218e7c2b2e903378ed5fccf765995
     # via requests
 charset-normalizer==3.4.2 \
     --hash=sha256:005fa3432484527f9732ebd315da8da8001593e2cf46a3d817669f062c3d9ed4 \