ci: fix the build action workflow (#146)

.github/workflows/build.yml

@@ -2,8 +2,6 @@ name: Flutter Build
 
 on:
   push:
-    branches: [main]
-
 # Cancel jobs and just run the last one
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -23,6 +21,14 @@ jobs:
       with:
         distribution: 'temurin'
         java-version: '17'
+    - name: Install CLI tools used in CI script
+      run: |
+        brew install sd # used in CI script as an easier to use sed CLI. Replaces text in files.
+    - name: Setup workspace credentials in iOS environment files
+      run: |
+        cp "ios/Env.swift.example" "ios/Env.swift"
+        sd 'siteId: String = ".*"' "siteId: String = \"${{ secrets.CUSTOMERIO_AMIAPP_FLUTTER_WORKSPACE_SITE_ID }}\"" "ios/Env.swift"
+        sd 'siteId: String = ".*"' "siteId: String = \"${{ secrets.CUSTOMERIO_AMIAPP_FLUTTER_WORKSPACE_API_KEY }}\"" "ios/Env.swift"
     - uses: ./.github/actions/setup-flutter
     - run: flutter build ios --release --no-codesign