Adds Gemini CLI to Github Actions (#2718)

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).

Author: ericwindmill

.github/workflows/beta.yml

@@ -38,19 +38,19 @@ jobs:
 
   # Verify the Android add-to-app samples build and pass tests with the beta
   # channel.
-  # android-build:
-  #   runs-on: ubuntu-latest
-  #   if: github.repository == 'flutter/samples'
-  #   steps:
-  #     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-  #     - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165
-  #       with:
-  #         distribution: 'zulu'
-  #         java-version: '17'
-  #     - uses: subosito/flutter-action@e938fdf56512cc96ef2f93601a5a40bde3801046
-  #       with:
-  #         channel: beta
-  #     - run: ./tool/android_ci_script.sh
+  android-build:
+    runs-on: ubuntu-latest
+    if: github.repository == 'flutter/samples'
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+      - uses: subosito/flutter-action@e938fdf56512cc96ef2f93601a5a40bde3801046
+        with:
+          channel: beta
+      - run: ./tool/android_ci_script.sh
 
   # Verify the iOS add-to-app samples build and pass tests with the beta
   # channel.

.github/workflows/build-android.yml

@@ -0,0 +1,30 @@
+name: Test Android Build
+
+# Declare default permissions as read only.
+permissions: read-all
+
+on:
+  push:
+    branches: [beta]
+  pull_request:
+    branches: [beta]
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash
+  
+jobs:
+  android-build:
+    runs-on: ubuntu-latest
+    if: github.repository == 'flutter/samples'
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+      - uses: subosito/flutter-action@e938fdf56512cc96ef2f93601a5a40bde3801046
+        with:
+          channel: stable
+      - run: ./tool/android_ci_script.sh

.github/workflows/build-ios.yml

@@ -0,0 +1,33 @@
+name: Test iOS Build
+
+# Declare default permissions as read only.
+permissions: read-all
+
+on:
+  push:
+    branches: [beta]
+  pull_request:
+    branches: [beta]
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash
+  
+jobs:
+  ios-build:
+    name: Test flutter beta channel
+    runs-on: macos-latest
+    if: github.repository == 'flutter/samples'
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+      - uses: subosito/flutter-action@e938fdf56512cc96ef2f93601a5a40bde3801046
+        with:
+          channel: beta
+      - run: ./tool/ios_ci_script.sh