Start Operations career with a specialist instead of representative

An ammendment to the previous commit: we moved to the Customer Support
role in Operations career, but the specific role we selected had a
terribly low base salary. This commit changes the role to a specialist
so that the starting salary is more in line with other careers.

Author: zupo

config.yml

@@ -46,8 +46,8 @@ careers:
   - name: Operations
     roles:
       - name: Customer Support
-        baseSalary: 3035
-        salary_com_key: customer-support-representative
+        baseSalary: 3527
+        salary_com_key: customer-support-specialist
       - name: Technical Support
         baseSalary: 4453
         salary_com_key: technical-customer-support-specialist-i