Update all docs building

Author: honno

Makefile

@@ -18,5 +18,6 @@ build:
 	-cp "$(SOURCEDIR)/_ghpages/index.html" "$(BUILDDIR)/index.html"
 	-touch "$(BUILDDIR)/.nojekyll"
 	-sphinx-build "$(SOURCEDIR)/2021.12" "$(BUILDDIR)/2021.12" $(SPHINXOPTS)
-	-cp -r "$(BUILDDIR)/2021.12" "$(BUILDDIR)/latest"
+	-sphinx-build "$(SOURCEDIR)/2022.12" "$(BUILDDIR)/2022.12" $(SPHINXOPTS)
+	-cp -r "$(BUILDDIR)/2022.12" "$(BUILDDIR)/latest"
 	-sphinx-build "$(SOURCEDIR)/draft" "$(BUILDDIR)/draft" $(SPHINXOPTS)

spec/_ghpages/versions.json

@@ -1,5 +1,6 @@
 {
 	  "2021.12": "2021.12",
+	  "2022.12": "2022.12",
 	  "latest": "latest",
 	  "draft": "draft"
 }