src: initialize pid variable before goto

This fixes an error when compiling with clang-cl on Windows:

```
src/node.cc(2437,5):  error: jump from this goto statement to its label is a Microsoft extension [-Werror,-Wmicrosoft-goto]
    goto out;
    ^
src/node.cc(2441,9):  note: jump bypasses variable initialization
  DWORD pid = args[0].As<Integer>()->Value();
        ^
```

PR-URL: https://github.com/nodejs/node/pull/22961
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

0 files changed, 0 insertions, 0 deletions