[magnum] fix dependencies (#30138)

ports/magnum/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "magnum",
   "version-string": "2020.06",
-  "port-version": 11,
+  "port-version": 12,
   "description": "C++11/C++14 graphics middleware for games and data visualization",
   "homepage": "https://magnum.graphics/",
   "license": null,
@@ -155,14 +155,9 @@
           "name": "magnum",
           "default-features": false,
           "features": [
-            "gl"
-          ]
-        },
-        {
-          "name": "magnum",
-          "default-features": false,
-          "features": [
-            "texturetools"
+            "gl",
+            "texturetools",
+            "trade"
           ]
         }
       ]
@@ -186,14 +181,9 @@
           "name": "magnum",
           "default-features": false,
           "features": [
-            "gl"
-          ]
-        },
-        {
-          "name": "magnum",
-          "default-features": false,
-          "features": [
-            "text"
+            "gl",
+            "text",
+            "trade"
           ]
         }
       ]

versions/baseline.json

@@ -4902,7 +4902,7 @@
     },
     "magnum": {
       "baseline": "2020.06",
-      "port-version": 11
+      "port-version": 12
     },
     "magnum-extras": {
       "baseline": "2020.06",

versions/m-/magnum.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "8ea35ff59474f3e0eaf9c13c2d5b4bae6519d651",
+      "version-string": "2020.06",
+      "port-version": 12
+    },
     {
       "git-tree": "e6431ca1de3d870f6489764786af14b7230fa29f",
       "version-string": "2020.06",