Prepare release 0.8.0 (#282)

Author: tomicapretto

pyproject.toml

@@ -41,7 +41,7 @@ funding = "https://opencollective.com/arviz"
 [project.optional-dependencies]
 # user facing optional dependency blocks
 xarray = [
-  "arviz-base @ git+https://github.com/arviz-devs/arviz-base",
+  "arviz-base>=0.8.0,<0.9.0",
   "xarray-einstats",
   "xarray",
 ]

src/arviz_stats/_version.py

@@ -1,3 +1,3 @@
 """ArviZ version."""
 
-__version__ = "0.8.0dev0"
+__version__ = "0.8.0"