feat(CI/CD): added workflow to test TGI

.github/workflows/test_tpu_tgi.yml

@@ -0,0 +1,33 @@
+name: Optimum TPU / Test TGI on TPU
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - "text-generation-inference/**"
+  pull_request:
+    branches: [ main ]
+    paths:
+      - "text-generation-inference/**"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  do-the-job:
+    name: Run TGI tests
+    runs-on: [optimum-tpu] # run the configured Google TPU
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Create venv and install Pytorch/XLA
+        run: |
+          python3 -m venv optimum-tpu-pytorch
+          source optimum-tpu-pytorch/bin/activate
+          python -m pip install -U pip
+          python -m pip install "torch~=2.2.0" "torch_xla[tpu]~=2.2.0" -f https://storage.googleapis.com/libtpu-releases/index.html
+      - name: Run TGI server python tests
+        run: |
+          source optimum-tpu-pytorch/bin/activate
+          make tgi_test