Notarization hangs on `notarytool submit` for hours without output

Im using `"@electron-forge/cli": "^7.2.0"` which uses notarize under the hood. I provide credentials to notarize by passing them to my `forge.config.js` like this:
```
osxSign: {
'identity': "Developer ID Application: MYCOMPANYNAME",
'hardened-runtime': true,
'gatekeeper-assess': false,
'entitlements': 'entitlements.plist',
'entitlements-inherit': 'entitlements.plist',
},
osxNotarize: {
tool: 'notarytool',
appleId: process.env.APPLE_ID,
appleIdPassword: process.env.APP_SPECIFIC_PASSWORD,
teamId: process.env.APPLE_TEAM_ID,
},
```
And I run `electron-forge package`.

### Expected Behavior:
Notarization succeeds or fails within 15 minutes.

### Actual Behavior:
The notarization step hangs on the `notarytool submit` step shown here:
```
electron-notarize:spawn spawning cmd: xcrun args: [
'notarytool', 'submit', '/var/folders/4g/p6tq8s_j4tqf78675mcggp8m0000gn/T/electron-notarize-F7fJr2/MYAPPNAME.zip',
'--apple-id', '*********',
'--password', '*********',
'--team-id', '*********',
'--wait',
'--output-format', 'json'
] opts: {} +0ms
```

### Notes:
Running this command by hand hangs, but if I remove `--wait` it succeeds in a couple minutes. My understanding of this wait flag is that its waiting on something else, but I dont understand what.

Removing the notarization steps prevents the hanging.

The zip is 0.3gb. I've checked that these vars are in my env. This issue has persisted all weekend.

What may be causing it to hang?