prepare release 5.2.2

Main change is support for compiling with 4.08, although there is no
ast_convenience, ast_mapper_class, ppx_metaquot nor ppx_tools for 4.08 yet.

dune-workspace.dev

@@ -1,6 +1,7 @@
+(lang dune 1.0)
 (context (opam (switch 4.02.3)))
 (context (opam (switch 4.03.0)))
 (context (opam (switch 4.04.2)))
 (context (opam (switch 4.05.0)))
 (context (opam (switch 4.06.1)))
-(context (opam (switch 4.07.0)))
+(context (opam (switch 4.07.1)))

ppx_tools_versioned.opam

@@ -1,22 +1,22 @@
-opam-version: "1.2"
+opam-version: "2.0"
 maintainer: "frederic.bour@lakaban.net"
 authors: [
   "Frédéric Bour <frederic.bour@lakaban.net>"
   "Alain Frisch <alain.frisch@lexifi.com>"
 ]
 license: "MIT"
-homepage: "https://github.com/let-def/ppx_tools_versioned"
-bug-reports: "https://github.com/let-def/ppx_tools_versioned/issues"
-dev-repo: "git://github.com/let-def/ppx_tools_versioned.git"
+homepage: "https://github.com/ocaml-ppx/ppx_tools_versioned"
+bug-reports: "https://github.com/ocaml-ppx/ppx_tools_versioned/issues"
+dev-repo: "git://github.com/ocaml-ppx/ppx_tools_versioned.git"
 tags: [ "syntax" ]
 build: [
   ["dune" "subst"] {pinned}
   ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]
-build-test: [["dune" "runtest" "-p" name "-j" jobs]]
 depends: [
+  "ocaml" {>= "4.02.0"}
   "dune" {build & >= "1.0"}
-  "ocaml-migrate-parsetree" { >= "1.0.10" }
+  "ocaml-migrate-parsetree" {>= "1.0.10"}
 ]
-available: ocaml-version >= "4.02.0"
 synopsis: "A variant of ppx_tools based on ocaml-migrate-parsetree"