Bump tqdm from 4.45.0 to 4.66.3

Bumps [tqdm](https://github.com/tqdm/tqdm) from 4.45.0 to 4.66.3.
- [Release notes](https://github.com/tqdm/tqdm/releases)
- [Commits](tqdm/tqdm@v4.45.0...v4.66.3)

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

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

requirements.txt

@@ -13,4 +13,4 @@ pytest-cov==2.8.1
 python-dateutil==2.8.0
 pytz==2019.1
 six==1.14.0
-tqdm==4.45.0
+tqdm==4.66.3