chore: update opam file

qtest.opam

@@ -1,28 +1,28 @@
-opam-version: "1.2"
+opam-version: "2.0"
 maintainer: "Simon Cruanes <simon.cruanes.2007@m4x.org"
-name: "qtest"
 version: "2.9"
 authors: [
   "Vincent Hugot <vincent.hugot@gmail.com>"
   "Simon Cruanes <simon.cruanes.2007@m4x.org"
 ]
+synopsis: "Lightweight inline test extraction from comments"
 homepage: "https://github.com/vincent-hugot/qtest"
 bug-reports: "https://github.com/vincent-hugot/qtest/issues"
 doc:
   "https://github.com/vincent-hugot/qtest/blob/master/README.adoc#introduction"
-dev-repo: "git@github.com:vincent-hugot/qtest.git"
+dev-repo: "git+https://github.com/vincent-hugot/qtest.git"
 build: [
-  [ "dune" "build" "-j" jobs "-p" name ]
+  [ "dune" "build" "@install" "-j" jobs "-p" name ]
 ]
 depends: [
   "base-bytes"
   "ounit" { >= "2.0.0" }
-  "dune" {build}
+  "dune" { >= "1.1" }
   "qcheck" { >= "0.5" }
+  "ocaml" { >= "4.02.0" }
 ]
 tags: [
   "test"
   "property"
   "quickcheck"
 ]
-available: [ocaml-version >= "4.02.0"]