API/SDK meta fix

Signed-off-by: Thomas Karl Pietrowski <thopiekar@googlemail.com>

CuraFreeCADPlugin/plugin.json

@@ -11,7 +11,7 @@
          "6.1.0",
          "7.0.0"
         ],
-    "api": 5,
+    "api": 7,
     "minimum_api": 4,
     "description": "Help to open FreeCAD files directly in Cura.",
     "i18n-catalog" : "FreeCADPlugin"

package.json

@@ -4,7 +4,7 @@
     "display_name": "FreeCAD Integration",
     "description": "Help to open FreeCAD files directly in Cura.",
     "package_version": "0.3.3",
-    "sdk_version": 6,
+    "sdk_version": 7,
     "sdk_version_semver": "7.0.0",
     "website": "https://thopiekar.eu/cura/plugins/cad/freecad/",
     "author": {