Update requests to 2.20.1 (#13986)

diff --git a/tools/wpt/requirements.txt b/tools/wpt/requirements.txt
index c20f36f..5610e90 100644
--- a/tools/wpt/requirements.txt
+++ b/tools/wpt/requirements.txt
@@ -1 +1 @@
-requests==2.20.0
+requests==2.20.1
diff --git a/tools/wptrunner/requirements_sauce.txt b/tools/wptrunner/requirements_sauce.txt
index 8ba53da..666db37 100644
--- a/tools/wptrunner/requirements_sauce.txt
+++ b/tools/wptrunner/requirements_sauce.txt
@@ -1,3 +1,3 @@
 mozprocess == 0.26
 selenium==3.141.0
-requests==2.20.0
+requests==2.20.1