Move to using a gi-docgen release rather than git

Review Request #2259 — Created Feb. 22, 2023 and submitted Feb. 24, 2023, 4:36 a.m.

Description

Testing Done

purged the subprojects directory and successfully built withe docs.

Commits

Summary
	Change the - in our version to + to make gi-docgen happy

Screenshots

Issues

Description	From	Last Updated

Ship it!

Move to using a gi-docgen release rather than git.

-	Change the - in our version to + to make gi-docgen happy
+	Move to using a gi-docgen release rather than git

~		gi-docgen started validating versions with the python packaging library which
	~	Move to using a gi-docgen release rather than git
-		is very strict about version numbers. So we abuse the local part to make this
-		work for now, but we should decide if we want to change our version numbers or
-		see if gi-docgen will do something different.