[CI/CD] Add Cypress e2e workflow for gantt chart

.github/workflows/cypress-e2e-gantt-chart-test.yml

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+name: Cypress E2E Gantt Chart Test
+
+on: [pull_request, push]
+
+env:
+  CI: 1
+  # avoid warnings like "tput: No value for $TERM and no -T specified"
+  TERM: xterm
+  OPENSEARCH_DASHBOARDS_VERSION: 'main'
+  OPENSEARCH_VERSION: '3.0.0'
+  OPENSEARCH_PLUGIN_VERSION: '3.0.0.0'
+
+jobs:
+  tests:
+    name: Run Cypress E2E Gantt Chart tests
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest ]
+        jdk: [ 11 ]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.jdk }}
+
+      - name: Checkout Plugin
+        uses: actions/checkout@v2
+
+      - name: Download OpenSearch
+        uses: peternied/download-file@v2
+        with:
+          url: https://artifacts.opensearch.org/snapshots/core/opensearch/${{ env.OPENSEARCH_VERSION }}-SNAPSHOT/opensearch-min-${{ env.OPENSEARCH_VERSION }}-SNAPSHOT-linux-x64-latest.tar.gz
+
+      - name: Extract OpenSearch
+        run: |
+          tar -xzf opensearch-*.tar.gz
+          rm -f opensearch-*.tar.gz
+        shell: bash
+
+      - name: Run OpenSearch
+        run: |
+          /bin/bash -c "./opensearch-${{ env.OPENSEARCH_VERSION }}-SNAPSHOT/bin/opensearch &"
+          sleep 30
+        shell: bash
+
+      - name: Check OpenSearch Running on Linux
+        if: ${{ runner.os != 'Windows'}}
+        run: curl http://localhost:9200/
+        shell: bash
+
+      - name: Show OpenSearch Logs
+        if: always()
+        run: cat ./opensearch-${{ env.OPENSEARCH_VERSION }}-SNAPSHOT/logs/opensearch.log
+        shell: bash
+
+      - name: Checkout OpenSearch Dashboards
+        uses: actions/checkout@v2
+        with:
+          path: OpenSearch-Dashboards
+          repository: opensearch-project/OpenSearch-Dashboards
+          ref: ${{ env.OPENSEARCH_DASHBOARDS_VERSION }}
+          fetch-depth: 0
+          filter: |
+            cypress
+            test
+
+      - name: Install Gantt Chart to Opensearch Dashboards Plugins Dir
+        run: |
+          mv gantt-chart ./OpenSearch-Dashboards/plugins
+
+      - id: tool-versions
+        run: |
+          echo "node_version=$(cat .node-version)" >> $GITHUB_OUTPUT
+          echo "yarn_version=$(jq -r '.engines.yarn' package.json)" >> $GITHUB_OUTPUT
+        working-directory: OpenSearch-Dashboards
+        shell: bash
+
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ steps.tool-versions.outputs.node_version }}
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Setup Opensearch Dashboards
+        run: |
+          npm uninstall -g yarn
+          echo "Installing yarn ${{ steps.tool-versions.outputs.yarn_version }}"
+          npm i -g yarn@${{ steps.tool-versions.outputs.yarn_version }}
+          yarn cache clean
+          yarn add sha.js
+        working-directory: OpenSearch-Dashboards
+        shell: bash
+
+      - name: Boodstrap Opensearch Dashboards
+        run: |
+          yarn osd bootstrap
+        working-directory: OpenSearch-Dashboards
+
+      - name: Run Opensearch Dashboards with Gantt Chart Installed
+        run: |
+          nohup yarn start --no-base-path --no-watch | tee dashboard.log &
+        working-directory: OpenSearch-Dashboards
+
+      - name : Check If OpenSearch Dashboards Is Ready
+        if: ${{ runner.os == 'Linux' }}
+        run: |
+          if timeout 600 grep -q "bundles compiled successfully after" <(tail -n0 -f dashboard.log); then
+            echo "OpenSearch Dashboards compiled successfully."
+          else
+            echo "Timeout for 600 seconds reached. OpenSearch Dashboards did not finish compiling."
+            exit 1
+          fi
+        working-directory: OpenSearch-Dashboards
+
+      - name: Install Cypress
+        run: |
+          npx cypress install
+        shell: bash
+        working-directory: OpenSearch-Dashboards/plugins/gantt-chart
+
+      - name: Get Cypress version
+        id: cypress_version
+        run: |
+          echo "::set-output name=cypress_version::$(cat ./package.json | jq '.dependencies.cypress' | tr -d '"')"
+        working-directory: OpenSearch-Dashboards/plugins/gantt-chart
+
+      - name: Run Cypress tests
+        run: |
+          yarn cypress:run --browser chrome --headless --spec '.cypress/integration/${{ matrix.testgroups }}/*'
+        working-directory: OpenSearch-Dashboards/plugins/gantt-chart
+
+      - name: Capture failure screenshots
+        uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: cypress-screenshots-${{ matrix.os }}
+          path: OpenSearch-Dashboards/plugins/gantt-chart/.cypress/screenshots
+
+      - name: Capture test video
+        uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: cypress-videos-${{ matrix.os }}
+          path: OpenSearch-Dashboards/plugins/gantt-chart/.cypress/videos