doc: reserve NMV 150 for Electron 45

Signed-off-by: John Kleinschmidt <jkleinsc@electronjs.org>
PR-URL: #65405
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <richard.lau@ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>

Author: jkleinsc

doc/abi_version_registry.json

@@ -1,5 +1,6 @@
 {
   "NODE_MODULE_VERSION": [
+    { "modules": 150,"runtime": "electron", "variant": "electron",             "versions": "45" },
     { "modules": 149,"runtime": "electron", "variant": "electron",             "versions": "44" },
     { "modules": 148,"runtime": "electron", "variant": "electron",             "versions": "43" },
     { "modules": 147,"runtime": "node",     "variant": "v8_14.6",              "versions": "26.0.0-pre" },