fix typo in autogenerated metaInfo

parser/parser-fplo/FploInputParser.py

@@ -270,7 +270,7 @@ class AST_root(AST_block):
             '  "dependencies": [{\n' +
             '    "relativePath": "public.nomadmetainfo.json"\n' +
             '  }],\n' +
-            '  "metainfos": [\n' +
+            '  "metaInfos": [\n' +
             '    {\n' +
             '      "description": "FPLO input metainfo, autogenerated",\n' +
             '      "name": "%s",\n' +