Sysinfo kilobytes -> Bytes change (#34328)

Author: Chetank99

base/sysinfo.jl

@@ -242,14 +242,14 @@ end
 """
     Sys.free_memory()
 
-Get the total free memory in RAM in kilobytes.
+Get the total free memory in RAM in bytes.
 """
 free_memory() = ccall(:uv_get_free_memory, UInt64, ())
 
 """
     Sys.total_memory()
 
-Get the total memory in RAM (including that which is currently used) in kilobytes.
+Get the total memory in RAM (including that which is currently used) in bytes.
 """
 total_memory() = ccall(:uv_get_total_memory, UInt64, ())