Update motor requirement from ~=2.5.1 to ~=3.0.0 in /api

Updates the requirements on [motor](https://github.com/mongodb/motor) to permit the latest version.
- [Release notes](https://github.com/mongodb/motor/releases)
- [Changelog](https://github.com/mongodb/motor/blob/master/doc/changelog.rst)
- [Commits](https://github.com/mongodb/motor/compare/2.5.1...3.0.0)

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

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

api/requirements.txt

@@ -4,7 +4,7 @@ oic~=1.3.0
 sanic-session~=0.8.0
 sanic-cors~=2.0.1
 python-slugify~=5.0.2
-motor~=2.5.1
+motor~=3.0.0
 pyyaml<6
 -e git+https://github.com/openmaptiles/openmaptiles-tools#egg=openmaptiles-tools
 sqlparse~=0.4.2

api/setup.py

@@ -16,7 +16,7 @@ setup(
         "sanic-session~=0.8.0",
         "sanic-cors~=2.0.1",
         "python-slugify~=5.0.2",
-        "motor~=2.5.1",
+        "motor>=2.5.1,<3.1.0",
         "pyyaml<6",
         "sqlparse~=0.4.2",
         "openmaptiles-tools",  # install from git