Update sanic requirement from ~=21.9.3 to ~=22.6.0 in /api

Updates the requirements on [sanic](https://github.com/sanic-org/sanic) to permit the latest version.
- [Release notes](https://github.com/sanic-org/sanic/releases)
- [Changelog](https://github.com/sanic-org/sanic/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/sanic-org/sanic/compare/v21.9.3...v22.6.0)

---
updated-dependencies:
- dependency-name: sanic
  dependency-type: direct:production
...

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

api/requirements.txt

@@ -1,5 +1,5 @@
 coloredlogs~=15.0.1
-sanic~=22.3.0
+sanic~=22.6.0
 oic~=1.3.0
 sanic-session~=0.8.0
 sanic-cors~=2.0.1

api/setup.py

@@ -11,7 +11,7 @@ setup(
     package_data={},
     install_requires=[
         "coloredlogs~=15.0.1",
-        "sanic>=21.9.3,<22.4.0",
+        "sanic>=21.9.3,<22.7.0",
         "oic>=1.3.0, <2",
         "sanic-session~=0.8.0",
         "sanic-cors~=2.0.1",