PostBot: Get buildtype from jsonDir dict instead of json [skip ci]

Change-Id: Ic71ff9c98a48c5d3a96c24066a33121607278eca
Signed-off-by: PrajjuS <[email protected]>

.github/scripts/post.py

@@ -133,7 +133,7 @@ def get_info(ID):
         MAINTAINER = info['maintainer']
         DATE_TIME = datetime.datetime.fromtimestamp(int(info['timestamp']))
         DOWNLOAD_URL = info['download']
-        BUILD_TYPE = info['buildtype']
+        BUILD_TYPE = build_type
         SIZE = round(int(info['size'])/1000000000, 2)
         MD5 = info['md5']
         SHA256 = info['sha256']