Mark ppx_deriving_yojson as incompatible with Yojson 3

It's actually mostly the tests causing issues, the tool works mostly
fine.

Author: Leonidas-from-XIV

packages/ppx_deriving_yojson/ppx_deriving_yojson.3.10.0/opam

@@ -15,6 +15,7 @@ depends: [
   "ocaml" {>= "4.05.0"}
   "dune" {>= "1.0"}
   "yojson" {>= "1.6.0"}
+  "yojson" {with-test & < "3"}
   "ppx_deriving" {>= "6.1"}
   "ppxlib" {>= "0.36.0"}
   "ounit2" {with-test}

packages/ppx_deriving_yojson/ppx_deriving_yojson.3.6.1/opam

@@ -15,6 +15,7 @@ depends: [
   "ocaml" {>= "4.05.0" & < "5.3.0"}
   "dune" {>= "1.0"}
   "yojson" {>= "1.6.0"}
+  "yojson" {with-test & < "3"}
   "result"
   "ppx_deriving" {>= "5.1"}
   "ppxlib" {>= "0.14.0" & < "0.26.0"}

packages/ppx_deriving_yojson/ppx_deriving_yojson.3.7.0/opam

@@ -13,6 +13,7 @@ depends: [
   "ocaml" {>= "4.05.0" & < "5.3.0"}
   "dune" {>= "1.0"}
   "yojson" {>= "1.6.0"}
+  "yojson" {with-test & < "3"}
   "result"
   "ppx_deriving" {>= "5.1"}
   "ppxlib" {>= "0.26.0" & < "0.36.0"}

packages/ppx_deriving_yojson/ppx_deriving_yojson.3.8.0/opam

@@ -15,6 +15,7 @@ depends: [
   "ocaml" {>= "4.05.0" & < "5.3.0"}
   "dune" {>= "1.0"}
   "yojson" {>= "1.6.0"}
+  "yojson" {with-test & < "3"}
   "ppx_deriving" {>= "5.1"}
   "ppxlib" {>= "0.30.0" & < "0.36.0"}
   "ounit2" {with-test}

packages/ppx_deriving_yojson/ppx_deriving_yojson.3.9.0/opam

@@ -15,6 +15,7 @@ depends: [
   "ocaml" {>= "4.05.0" & < "5.3.0"}
   "dune" {>= "1.0"}
   "yojson" {>= "1.6.0"}
+  "yojson" {with-test & < "3"}
   "ppx_deriving" {>= "5.1"}
   "ppxlib" {>= "0.30.0" & < "0.36.0"}
   "ounit2" {with-test}

packages/ppx_deriving_yojson/ppx_deriving_yojson.3.9.1/opam

@@ -15,6 +15,7 @@ depends: [
   "ocaml" {>= "4.05.0"}
   "dune" {>= "1.0"}
   "yojson" {>= "1.6.0"}
+  "yojson" {with-test & < "3"}
   "ppx_deriving" {>= "5.1"}
   "ppxlib" {>= "0.30.0" & < "0.36.0"}
   "ounit2" {with-test}