Apply suggestions from code review

Co-authored-by: Athan <kgryte@gmail.com>
Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/blas/base/ndarray/zscal/package.json

@@ -68,6 +68,6 @@
     "complex",
     "complex128",
     "float64",
-    "single"
+    "double"
   ]
 }