add arm64 to je_update in pacman

Author: cdburke

config/version.txt

@@ -1 +1 @@
-9.6.13
+9.6.14

pacman/je_update.ijs

@@ -15,9 +15,10 @@ NEW=. hostpathsep jpath bname,'.new'
 if. 1~:ftype bname do. log'upgrade not supported for this type of install' return. end.
 
 if. IF64 > IFRASPI do.
-  t=. httpget path,plat,'/j64'
+  s=. IFWA64 pick '64';'arm64'
+  t=. httpget path,plat,'/j',s
   if. 1=;{.t do. log'upgrade - read jengine folder failed' return end.
-  a=. fread '~temp/j64'
+  a=. fread '~temp/j',s
   i=. >:((;(UNAME-:'Win'){'>libj';'>j') E. a)#i.#a
   a=. i}.each (#i)#<a
   a=. (a i.each'<'){.each a NB. hardware binaries available