I apologize for forgetting to mark this as Resolved.
I don't believe that you can create an Applescript that will directly open your Google calendar from the dock, but you can create an app from the script and place that in the dock, and that's what I did.
The script is simply this where x, y and z will be different for you.
Code:
tell application "Safari"
make new document with properties {URL:"https://calendar.google.com/calendar/x/y/z"}
end tell