Bump tqdm from 4.55.1 to 4.56.0 (#347)

dependabot-preview[bot] · web-flow · commit 870f59133d40 · 2021-01-11T10:01:00.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -5,4 +5,4 @@ lxml==4.6.2
 requests==2.25.1
 sciencebeam-utils==0.1.1
 six==1.15.0
-tqdm==4.55.1
+tqdm==4.56.0
