deps: bump authlib from 1.6.7 to 1.6.9

Bumps [authlib](https://github.com/authlib/authlib) from 1.6.7 to 1.6.9.
- [Release notes](https://github.com/authlib/authlib/releases)
- [Changelog](https://github.com/authlib/authlib/blob/main/docs/changelog.rst)
- [Commits](authlib/authlib@v1.6.7...v1.6.9)

---
updated-dependencies:
- dependency-name: authlib
  dependency-version: 1.6.9
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -21,9 +21,9 @@ attrs==25.3.0 \
     # via
     #   jsonschema
     #   referencing
-authlib==1.6.7 \
-    --hash=sha256:c637340d9a02789d2efa1d003a7437d10d3e565237bcb5fcbc6c134c7b95bab0 \
-    --hash=sha256:dbf10100011d1e1b34048c9d120e83f13b35d69a826ae762b93d2fb5aafc337b
+authlib==1.6.9 \
+    --hash=sha256:d8f2421e7e5980cc1ddb4e32d3f5fa659cfaf60d8eaf3281ebed192e4ab74f04 \
+    --hash=sha256:f08b4c14e08f0861dc18a32357b33fbcfd2ea86cfe3fe149484b4d764c4a0ac3
     # via drf-oidc-auth
 cachetools==6.2.0 \
     --hash=sha256:1c76a8960c0041fcc21097e357f882197c79da0dbff766e7317890a65d7d8ba6 \