build(deps): bump uvicorn from 0.14.0 to 0.15.0 (#1261)

Bumps [uvicorn](https://github.com/encode/uvicorn) from 0.14.0 to 0.15.0.
- [Release notes](https://github.com/encode/uvicorn/releases)
- [Changelog](https://github.com/encode/uvicorn/blob/master/CHANGELOG.md)
- [Commits](https://github.com/encode/uvicorn/compare/0.14.0...0.15.0)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Pipfile.lock

@@ -130,11 +130,11 @@
         },
         "botocore": {
             "hashes": [
-                "sha256:adf70e966b63bb2f847dba8478de2d5f5c2d03c57fc0aafee35cdbf38b7ad0c0",
+                "sha256:12cfe74b0a5c44afb34bdd86c1f8ad74bc2ad9ec168eaed9040ef70cb3db944f",
-                "sha256:dd1a6177006e93695ee745871718d85a81412e586f93d7c666bce7bc107ce90f"
+                "sha256:fa5ac13829d24fcdd385e82c3b6d78e22d93f427cca8dac38158cae84a8cc2f5"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==1.21.20"
+            "version": "==1.21.21"
         },
         "cachetools": {
             "hashes": [
@@ -1186,11 +1186,11 @@
                 "standard"
             ],
             "hashes": [
-                "sha256:2a76bb359171a504b3d1c853409af3adbfa5cef374a4a59e5881945a97a93eae",
+                "sha256:17f898c64c71a2640514d4089da2689e5db1ce5d4086c2d53699bf99513421c1",
-                "sha256:45ad7dfaaa7d55cab4cd1e85e03f27e9d60bc067ddc59db52a2b0aeca8870292"
+                "sha256:d9a3c0dd1ca86728d3e235182683b4cf94cd53a867c288eaeca80ee781b2caff"
             ],
             "index": "pypi",
-            "version": "==0.14.0"
+            "version": "==0.15.0"
         },
         "uvloop": {
             "hashes": [
@@ -1579,7 +1579,7 @@
                 "sha256:9c2ea1e62d871267b78307fe511c0838ba0da28698c5732d54e2790bf3ba9899",
                 "sha256:e17d6e2b81095c9db0a03a8025a957f334d6ea30b26f9ec70805411e5c7c81f2"
             ],
-            "markers": "python_version < '4.0' and python_full_version >= '3.6.1'",
+            "markers": "python_version < '4' and python_full_version >= '3.6.1'",
             "version": "==5.9.3"
         },
         "lazy-object-proxy": {