poetry: bump version to 6.0.5

... I need to stop missing this. We need to centralize version
setting into a single file and source it.

Signed-off-by: Kevin Morris <kevr@0cost.org>

pyproject.toml

@@ -8,7 +8,7 @@
 #
 [tool.poetry]
 name = "aurweb"
-version = "v6.0.4"
+version = "v6.0.5"
 license = "GPL-2.0-only"
 description = "Source code for the Arch User Repository's website"
 homepage = "https://aur.archlinux.org"