debugger: correct typo in inspect_repl.js

PR-URL: nodejs#42267
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>

lib/internal/debugger/inspect_repl.js

@@ -976,7 +976,7 @@ function createRepl(inspector) {
           let sizeWritten = 0;
           function onProgress({ done, total, finished }) {
             if (finished) {
-              print('Heap snaphost prepared.');
+              print('Heap snapshot prepared.');
             } else {
               print(`Heap snapshot: ${done}/${total}`, false);
             }