dependabot PRs

Bump boto3 from 1.18.53 to 1.18.58

Bumps [boto3](https://github.com/boto/boto3) from 1.18.53 to 1.18.58.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.18.53...1.18.58)

---
updated-dependencies:
- dependency-name: boto3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Bump fastapi from 0.68.1 to 0.70.0

Bumps [fastapi](https://github.com/tiangolo/fastapi) from 0.68.1 to 0.70.0.
- [Release notes](https://github.com/tiangolo/fastapi/releases)
- [Commits](tiangolo/fastapi@0.68.1...0.70.0)

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

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

Bump flake8 from 3.9.2 to 4.0.1

Bumps [flake8](https://github.com/pycqa/flake8) from 3.9.2 to 4.0.1.
- [Release notes](https://github.com/pycqa/flake8/releases)
- [Commits](PyCQA/flake8@3.9.2...4.0.1)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Bump pycodestyle from 2.7.0 to 2.8.0

Bumps [pycodestyle](https://github.com/PyCQA/pycodestyle) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/PyCQA/pycodestyle/releases)
- [Changelog](https://github.com/PyCQA/pycodestyle/blob/main/CHANGES.txt)
- [Commits](PyCQA/pycodestyle@2.7.0...2.8.0)

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

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

requirements-server.txt

@@ -1,5 +1,5 @@
-fastapi==0.68.1
+fastapi==0.70.0
 maggma==0.31.0
 uvicorn==0.15.0
 gunicorn[gevent]==20.1.0
-boto3==1.18.53
+boto3==1.18.58

requirements-testing.txt

@@ -3,8 +3,8 @@ pytest==6.2.5
 pytest-asyncio==0.15.1
 pytest-cov==3.0.0
 pytest-mock==3.6.1
-pycodestyle==2.7.0
-flake8==3.9.2
+flake8==4.0.1
+pycodestyle==2.8.0
 mypy==0.910
 mypy-extensions==0.4.3
 typing-extensions==3.10.0.2