Add workflow for 32bits testing

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

.github/workflows/phpunit-32bits.yml

@@ -0,0 +1,47 @@
+name: PHPUnit
+
+on: pull_request
+
+permissions:
+  contents: read
+
+concurrency:
+  group: phpunit-32bits-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  phpunit-32bits:
+    runs-on: ubuntu-latest
+    container: shivammathur/node:latest-i386
+
+    strategy:
+      matrix:
+        php-versions: ['8.0']
+
+    steps:
+      - name: Checkout server
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          extensions: ctype, curl, dom, fileinfo, gd, imagick, intl, json, mbstring, oci8, openssl, pdo_sqlite, posix, sqlite, xml, zip, apcu
+          tools: phpunit:9
+          coverage: none
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Nextcloud
+        env:
+          DB_PORT: 4444
+        run: |
+          mkdir data
+          ./occ maintenance:install --verbose --database=sqlite --database-name=nextcloud --database-host=127.0.0.1 --database-port=$DB_PORT --database-user=autotest --database-pass=rootpassword --admin-user admin --admin-pass admin
+          php -f index.php
+
+      - name: PHPUnit
+        working-directory: tests
+        run: phpunit --configuration phpunit-autotest.xml --group NODB,DB,SLOWDB