deps/v8: add missing #include "unicode/normlzr.h"

* The following function from <unicode/normlzr.h> is used:
     normalize()

* Until ICU 59, <unicode/normlzr.h> is indirectly included, but this changed with the 59 release. Adding this header has been the right thing to do for many years, so it is backwards compatible and fix compilation with recent ICU.

Refs: nodejs/node#13022
PR-URL: nodejs/node#13040
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>

deps/v8z/include/v8-version.h

@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 4
 #define V8_MINOR_VERSION 5
 #define V8_BUILD_NUMBER 103
-#define V8_PATCH_LEVEL 47
+#define V8_PATCH_LEVEL 48
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8z/src/runtime/runtime-i18n.cc

@@ -22,6 +22,7 @@
 #include "unicode/dtfmtsym.h"
 #include "unicode/dtptngen.h"
 #include "unicode/locid.h"
+#include "unicode/normlzr.h"
 #include "unicode/numfmt.h"
 #include "unicode/numsys.h"
 #include "unicode/rbbi.h"