fix: start docker container for tests in release workflow

Author: hf-kklein

.github/workflows/release_nuget.yml

@@ -23,6 +23,19 @@ jobs:
       - name: Build/Check for compile errors (dotnet build)
         working-directory: "TransformerBeeClient"
         run: dotnet build --configuration Release
+      - name: Log into registry
+        # GHCR_PAT is a personal access token for the Github Container Registry; You can create it using the following steps:
+        # 1) Go to https://github.com/settings/tokens
+        # 2) Create a new token (classic as of 2024-01-31)
+        # 3) Select the following scopes: read:packages
+        # GHCR_USR is the username for the Github Container Registry; it has to match the PAT and is the username of the Github account that created the PAT
+        # You can update the tokens in the repository settings:
+        # https://github.com/Hochfrequenz/transformer.bee_client.net/settings/secrets/actions/GHCR_PAT
+        # https://github.com/Hochfrequenz/transformer.bee_client.net/settings/secrets/actions/GHCR_USR
+        # Tokens will expire 2025-01-31
+        run: echo "${{ secrets.GHCR_PAT }}" | docker login ghcr.io -u ${{ secrets.GHCR_USR }} --password-stdin
+      - name: Start containers
+        run: docker-compose -f "TransformerBeeClient/TransformerBeeClient.IntegrationTest/docker-compose.yml" up -d
       - name: Run Unit Tests (dotnet test) # never ever release with failing tests!
         working-directory: "TransformerBeeClient"
         run: dotnet test --configuration Release