Bump requests to 2.18.2
Bump requests to 2.18.2

mozmar/snippets-service,mozmar/snippets-service,mozilla/snippets-service,mozilla/snippets-service,glogiotatidis/snippets-service,glogiotatidis/snippets-service,mozmar/snippets-service,mozilla/snippets-service,mozmar/snippets-service,glogiotatidis/snippets-service,glogiotatidis/snippets-service,mozilla/snippets-service