Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/myclabs/deep-copy/.github/workflows/ci.yaml

@@ -1,101 +0,0 @@
-name: "Continuous Integration"
-
-on:
-  - pull_request
-  - push
-
-env:
-  COMPOSER_ROOT_VERSION: 1.99
-
-jobs:
-  composer-json-lint:
-    name: "Lint composer.json"
-
-    runs-on: "ubuntu-latest"
-
-    strategy:
-      matrix:
-        php-version:
-          - "8.1"
-
-    steps:
-      - name: "Checkout"
-        uses: "actions/checkout@v2"
-
-      - name: "Install PHP"
-        uses: "shivammathur/setup-php@v2"
-        with:
-          coverage: "none"
-          php-version: "${{ matrix.php-version }}"
-          tools: composer-normalize
-
-      - name: "Get composer cache directory"
-        id: composercache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
-
-      - name: "Cache dependencies"
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.composercache.outputs.dir }}
-          key: ${{ runner.os }}-php-${{ matrix.php-version }}-${{ matrix.dependencies }}-composer-${{ hashFiles('**/composer.json') }}
-          restore-keys: ${{ runner.os }}-php-${{ matrix.php-version }}-${{ matrix.dependencies }}-composer-
-
-      - name: "Install dependencies"
-        run: "composer update --no-interaction --no-progress"
-
-      - name: "Validate composer.json"
-        run: "composer validate --strict"
-
-      - name: "Normalize composer.json"
-        run: "composer-normalize --dry-run"
-
-  tests:
-    name: "Tests"
-
-    runs-on: "ubuntu-latest"
-
-    strategy:
-      matrix:
-        php-version:
-          - "7.1"
-          - "7.2"
-          - "7.3"
-          - "7.4"
-          - "8.0"
-          - "8.1"
-        dependencies:
-          - "lowest"
-          - "highest"
-
-    steps:
-      - name: "Checkout"
-        uses: "actions/checkout@v2"
-
-      - name: "Install PHP"
-        uses: "shivammathur/setup-php@v2"
-        with:
-          php-version: "${{ matrix.php-version }}"
-          ini-values: zend.assertions=1
-
-      - name: "Get composer cache directory"
-        id: composercache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
-
-      - name: "Cache dependencies"
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.composercache.outputs.dir }}
-          key: ${{ runner.os }}-php-${{ matrix.php-version }}-${{ matrix.dependencies }}-composer-${{ hashFiles('**/composer.json') }}
-          restore-keys: ${{ runner.os }}-php-${{ matrix.php-version }}-${{ matrix.dependencies }}-composer-
-
-      - name: "Install lowest dependencies"
-        if: ${{ matrix.dependencies == 'lowest' }}
-        run: "composer update --no-interaction --no-progress --prefer-lowest"
-
-      - name: "Install highest dependencies"
-        if: ${{ matrix.dependencies == 'highest' }}
-        run: "composer update --no-interaction --no-progress"
-
-      - name: "Run tests"
-        timeout-minutes: 3
-        run: "vendor/bin/phpunit"