eas update appears to be changing an environment variable in my build

### Build/Submit details page URL

https://expo.dev/accounts/hodeem/projects/sheltah/builds/7eb6fb53-0f9a-4ba0-b00d-cba0834d947d

### Summary

I have `SERVER` set in both the local .env file and the eas.json file. The .env file is in the .gitignore file.
In the JS code, the `SERVER` value is referenced by using `const SERVER = process.env.SERVER`.

If I run `eas build` with a profile, platform etc., the JS code uses the correct `SERVER` value from selected build profile.

However, when I run `eas update`, the JS code **intermittently** uses the SERVER value that I **only** have in the local .env file.

I say "intermittently" because it appears that the change happens on the first `eas update`, but I can't change the `SERVER` value via. the .env file with any subsequent `eas update`. It has happened twice so far. Can someone let me know what I'm doing wrong or if this is a legitimate bug.

### Managed or bare?

Managed

### Environment

Output from `npx expo-env-info`:
```

expo-env-info 1.2.0 environment info:
System:
OS: macOS 11.7.4
Shell: 5.8 - /bin/zsh
Binaries:
Node: 18.18.1 - ~/.nvm/versions/node/v18.18.1/bin/node
Yarn: 1.22.19 - ~/.nvm/versions/node/v18.18.1/bin/yarn
npm: 9.8.1 - ~/.nvm/versions/node/v18.18.1/bin/npm
Watchman: 2023.08.28.00 - /usr/local/bin/watchman
Managers:
CocoaPods: 1.15.2 - /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms: DriverKit 21.2, iOS 15.2, macOS 12.1, tvOS 15.2, watchOS 8.3
IDEs:
Android Studio: 2022.1 AI-221.6008.13.2211.9514443
Xcode: 13.2.1/13C100 - /usr/bin/xcodebuild
npmPackages:
@expo/metro-config: ~0.10.0 => 0.10.7
babel-preset-expo: ^9.5.2 => 9.5.2
expo: ^48 => 48.0.20
react: 18.2.0 => 18.2.0
react-native: 0.71.14 => 0.71.14
react-native-web: ~0.18.10 => 0.18.12
npmGlobalPackages:
eas-cli: 7.2.0
Expo Workflow: managed
```

Output from `npx expo-doctor`:
```
✔ Check Expo config for common issues
✔ Check package.json for common issues
✔ Check dependencies for packages that should not be installed directly
✔ Check for common project setup issues
✔ Check for issues with metro config
✔ Check npm/ yarn versions
✔ Check Expo config (app.json/ app.config.js) schema
✔ Check that packages match versions required by installed Expo SDK
✔ Check for legacy global CLI installed locally
✔ Check that native modules do not use incompatible support packages
✔ Check that native modules use compatible support package versions for installed Expo SDK

Didn't find any issues with the project!
```

### Error output

N/A

### Reproducible demo or steps to reproduce from a blank project

1. Run `eas build --auto-submit --profile production --platform android`
2. Run `eas submit --channel production`

Files:
.env
```
SERVER=https://local-domain.com
```

.gitignore
```
node_modules/
.expo/
npm-debug.*
*.jks
*.p8
*.p12
*.key
*.mobileprovision
*.orig.*
web-build/

# macOS
.DS_Store

.env*

android/
ios/
# @generated expo-cli sync-e7dcf75f4e856f7b6f3239b3f3a7dd614ee755a8
# The following patterns were generated by expo-cli

# OSX
#
.DS_Store

# Xcode
#
build/
*.pbxuser
!default.pbxuser
*.mode1v3
!default.mode1v3
*.mode2v3
!default.mode2v3
*.perspectivev3
!default.perspectivev3
xcuserdata
*.xccheckout
*.moved-aside
DerivedData
*.hmap
*.ipa
*.xcuserstate
project.xcworkspace

# Android/IntelliJ
#
build/
.idea
.gradle
local.properties
*.iml
*.hprof

# node.js
#
node_modules/
npm-debug.log
yarn-error.log

# BUCK
buck-out/
\.buckd/
*.keystore
!debug.keystore

# Bundle artifacts
*.jsbundle

# CocoaPods
/ios/Pods/

# Expo
.expo/
web-build/
dist/

# @end expo-cli

dont_upload/

*/Spring Boot
**/build
*.keystore
*.apk

artifacts
```

eas.json
```
{
"cli": {
"version": ">= 3.8.1",
"appVersionSource": "remote"
},
"build": {
"internal": {
"developmentClient": true,
"distribution": "internal",
"ios": {
"simulator": true,
"resourceClass": "m-medium",
"cocoapods": "1.15.2"
},
"android": {
"developmentClient": true
},
"channel": "development"
},
"staging": {
"distribution": "store",
"ios": {
"resourceClass": "m-medium",
"cocoapods": "1.15.2",
"autoIncrement": "buildNumber"
},
"android": {
"resourceClass": "medium",
"buildType": "app-bundle",
"autoIncrement": "versionCode"
},
"channel": "staging",
"env": {
"SERVER": "https://staging-domain.com
}
},
"production": {
"extends": "staging",
"channel": "production",
"env":{
"SERVER": "https://production-domain.com"
}
}
},
"submit": {
"production": {
"android": {
"serviceAccountKeyPath": "./dont_upload/google-service-account-key.json",
"track": "production"
},
"ios": {
"appleId": "***",
"ascAppId": "***",
"appleTeamId": "***"
}
},
"staging": {
"extends": "production",
"android": {
"track": "alpha"
}
}
}
}
```

app.config.js
```

module.exports = ({ config }) => ({
"expo": {
"name": "***",
"scheme": "***",
"slug": "***",
"version": "1.0.1",
"orientation": "portrait",
"icon": "./assets/house_icon.png",
"userInterfaceStyle": "automatic",
"splash": {
"image": "./assets/house_icon.png",
"resizeMode": "contain",
"backgroundColor": "#ffffff"
},
"assetBundlePatterns": [
"**/*"
],
"ios": {
"supportsTablet": true,
"bundleIdentifier": "***",
"googleServicesFile": "./config/firebase/GoogleService-Info.plist",
},
"android": {
"package": "***",
"googleServicesFile": "./config/firebase/google-services.json",
"config": {
"googleMaps": {
"apiKey": '***'
}
}
},
"web": {
"favicon": "./assets/favicon.png"
},
"extra": {
"eas": {
"projectId": "***"
},
},
"plugins": [
[
"expo-build-properties",
{
"ios": {
"useFrameworks": "static"
}
}
],
"@react-native-firebase/app",
"@react-native-firebase/crashlytics",
"@react-native-firebase/perf",
[
"expo-image-picker",
{
"cameraPermission": "You may need to take photos of your listing with the device camera.",
"photosPermission": "You may need to upload photos of your listing from the photo gallery.",
}
],
["expo-tracking-transparency", {
"userTrackingPermission": "This identifier will be used to deliver personalized ads to you."
}],
"./plugins/android_manifest",
"./plugins/main_activity"
],
"updates": {
"url": "***"
},
"runtimeVersion": {
"policy": "sdkVersion"
},
},
...config
})

```

app.json:
```
{
"react-native-google-mobile-ads": {
"android_app_id": "***",
"ios_app_id": "***",
"user_tracking_usage_description": "This identifier will be used to deliver personalized ads to you.",
"sk_ad_network_items": [***],
}
}
```