Chore: change doc directory (#14553)

build/deploy-faas.sh

@@ -5,7 +5,7 @@ cd temp_web
 git clone --depth 1 -b gh-pages --single-branch https://github.com/ElemeFE/element.git && cd element
 
 # build sub folder
-SUB_FOLDER='2.5'
+SUB_FOLDER='2.6'
 mkdir $SUB_FOLDER
 rm -rf *.js *.css *.map static
 rm -rf $SUB_FOLDER/**