Hello @Cesar-Quesdilla,
As a Canvas admin in higher-ed, I can tell you this probably won't be something added to Canvas. While Canvas may have some of your grade information, it's almost always considered to be an "unofficial" grade. Official grade info is stored in a student information system, along with additional information about a course, potentially like how many credit hours it is worth. GPA calculations have a lot of nuance to them than can very by school as well, like maximums, minimums and other things that affect calculations. Student information systems are made to handle all of these nuances and be the overall record holders, while Canvas is intended to be your virtual classroom space.
Many schools now have what they call a :portal" for students to log in to, which may pull information from various sources and display it in a convenient manner for you. If your school has a portal, that might be a place they could choose to display your GPA.
I know this may not be what you wanted to hear, but I hope the explanation helps a bit.
-Chris
