Merge pull request #7059 from docker/dependabot/pip/pysocks-1.7.1

Bump pysocks from 1.6.7 to 1.7.1

requirements.txt

@@ -16,7 +16,7 @@ jsonschema==3.0.1
 paramiko==2.6.0
 pypiwin32==219; sys_platform == 'win32' and python_version < '3.6'
 pypiwin32==223; sys_platform == 'win32' and python_version >= '3.6'
-PySocks==1.6.7
+PySocks==1.7.1
 PyYAML==4.2b1
 requests==2.22.0
 six==1.12.0