test: Add conformance tests

.github/workflows/conformance.yaml

@@ -0,0 +1,44 @@
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# Github action job to test core java library features on
+# downstream client libraries before they are released.
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+name: conformance
+jobs:
+  conformance:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [ 14, 16, 18, 20 ]
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/checkout@v3
+      with:
+        repository: googleapis/cloud-bigtable-clients-test
+        ref: main
+        path: cloud-bigtable-clients-test
+    - uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node }}
+    - uses: actions/setup-go@v4
+      with:
+        go-version: '>=1.20.2'
+    - run: chmod +x .kokoro/conformance.sh
+    - run: npm install
+    - run: go version
+    - run: .kokoro/conformance.sh