Bump authlib from 1.5.1 to 1.6.4 in /src/api/python

Bumps [authlib](https://github.com/authlib/authlib) from 1.5.1 to 1.6.4.
- [Release notes](https://github.com/authlib/authlib/releases)
- [Changelog](https://github.com/authlib/authlib/blob/main/docs/changelog.rst)
- [Commits](authlib/authlib@v1.5.1...v1.6.4)

---
updated-dependencies:
- dependency-name: authlib
  dependency-version: 1.6.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

src/api/python/requirements.bazel.txt

@@ -4,9 +4,9 @@
 #
 #    pip-compile --allow-unsafe --generate-hashes --output-file=requirements.bazel.txt requirements.txt
 #
-authlib==1.5.1 \
-    --hash=sha256:5cbc85ecb0667312c1cdc2f9095680bb735883b123fb509fde1e65b1c5df972e \
-    --hash=sha256:8408861cbd9b4ea2ff759b00b6f02fd7d81ac5a56d0b2b22c08606c6049aae11
+authlib==1.6.4 \
+    --hash=sha256:104b0442a43061dc8bc23b133d1d06a2b0a9c2e3e33f34c4338929e816287649 \
+    --hash=sha256:39313d2a2caac3ecf6d8f95fbebdfd30ae6ea6ae6a6db794d976405fdd9aa796
     # via -r requirements.txt
 cffi==1.15.1 \
     --hash=sha256:00a9ed42e88df81ffae7a8ab6d9356b371399b91dbdf0c3cb1e84c03a13aceb5 \

src/api/python/requirements.txt

@@ -1,4 +1,4 @@
-Authlib==1.5.1
+Authlib==1.6.4
 grpcio==1.70.0
 grpcio-tools==1.70.0
 protobuf==5.29.3