Switch upx to just use lzma to speed up builds (#6313)

bin/crew

@@ -1028,7 +1028,7 @@ def shrink_dir(dir)
             pool.post do
               begin
                 puts "Attempting to compress #{execfile.chomp} ...".lightblue
-                system "upx --best -k --overlay=skip #{execfile}"
+                system "upx --lzma -k --overlay=skip #{execfile}"
                 system "upx -t #{execfile}" and FileUtils.rm "#{execfile}.~"
               rescue
                 FileUtils.mv "#{execfile}.~", execfile

lib/const.rb

@@ -1,6 +1,6 @@
 # Defines common constants used in different parts of crew
 
-CREW_VERSION = '1.17.4'
+CREW_VERSION = '1.17.5'
 
 ARCH_ACTUAL = `uname -m`.chomp
 # This helps with virtualized builds on aarch64 machines