Add GitHub actions (#60)

* Send email with just one click (easy as pie!)

.github/workflows/production.yaml

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+name: "♨️ Send email for all users"
+
+on:
+  workflow_dispatch:
+
+jobs:
+  send-email-for-all-users:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '7.4'
+          tools: composer:v2
+
+      - name: Install Composer dependencies
+        run: composer install --no-progress --optimize-autoloader --quiet
+
+      - name: Import BOTTOM_CONTENT_HTML and TOP_CONTENT_HTML into env
+        shell: bash
+        run: |
+          echo "BOTTOM_CONTENT_HTML=$(cat BOTTOM_CONTENT_HTML.txt)" >> $GITHUB_ENV
+          echo "TOP_CONTENT_HTML=$(cat TOP_CONTENT_HTML.txt)" >> $GITHUB_ENV
+
+      - name: Run script
+        run: php main.php
+        env:
+          PAKAT_SMTP_USERNAME: ${{ secrets.PAKAT_SMTP_USERNAME }}
+          PAKAT_SMTP_PASSWORD: ${{ secrets.PAKAT_SMTP_PASSWORD }}
+          PAKAT_API_KEY:       ${{ secrets.PAKAT_API_KEY }}
+          BOTTOM_CONTENT_HTML: ${{ env.BOTTOM_CONTENT_HTML }}
+          TOP_CONTENT_HTML:    ${{ env.TOP_CONTENT_HTML }}
+          SEND_ENV:            "production"

.github/workflows/staging.yaml

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+name: "🍊 Send email for test users"
+
+on:
+  workflow_dispatch:
+
+jobs:
+  send-email-for-test-users:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '7.4'
+          tools: composer:v2
+
+      - name: Install Composer dependencies
+        run: composer install --no-progress --optimize-autoloader --quiet
+
+      - name: Import BOTTOM_CONTENT_HTML and TOP_CONTENT_HTML into env
+        shell: bash
+        run: |
+          echo "BOTTOM_CONTENT_HTML=$(cat BOTTOM_CONTENT_HTML.txt)" >> $GITHUB_ENV
+          echo "TOP_CONTENT_HTML=$(cat TOP_CONTENT_HTML.txt)" >> $GITHUB_ENV
+
+      - name: Run script
+        run: php main.php
+        env:
+          PAKAT_SMTP_USERNAME: ${{ secrets.PAKAT_SMTP_USERNAME }}
+          PAKAT_SMTP_PASSWORD: ${{ secrets.PAKAT_SMTP_PASSWORD }}
+          PAKAT_API_KEY:       ${{ secrets.PAKAT_API_KEY }}
+          BOTTOM_CONTENT_HTML: ${{ env.BOTTOM_CONTENT_HTML }}
+          TOP_CONTENT_HTML:    ${{ env.TOP_CONTENT_HTML }}
+          SEND_ENV:            "test"

BOTTOM_CONTENT_HTML.txt

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+'<p style="font-size: 16px; text-align: center; font-family: 'Samim'; direction: rtl; color: #263238; "><img src='https://pakat.net/wp-content/uploads/2020/02/pakat-new-logo-white_00ea005b1_2512.png'><br> ارسال شده توسط <a href="https://pakat.net/">پاکت</a></p><p style=" font-size: 14px; text-align: center; font-family: 'Samim'; direction: rtl; color: #263238; "> <a href="https://pakat.net/">سرویس پاکت</a> اسپانسر ارسال ایمیل<200c>های این خبرنامه است. با کد تخفیف sota10 می<200c>توانید از ۱۰ درصد تخفیف در خرید پلن<200c>های پاکت بهره<200c>مند شوید</p>'

TOP_CONTENT_HTML.txt

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+''