ci: init gleam end to end test in CI

Adds a github action to setup a prod-like edgehog environment and run an end to
end test of the backend.

Signed-off-by: Luca Zaninotto <luca.zaninotto@secomind.com>

Author: lusergit

.github/workflows/e2e-test.yaml

@@ -0,0 +1,79 @@
+#
+# This file is part of Edgehog.
+#
+# Copyright 2025 SECO Mind Srl
+#
+# 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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+name: End to end test
+
+on:
+  # Run when pushing to stable branches
+  push:
+    paths:
+      - "backend/**"
+      - "tools/e2e_test/**"
+      - ".tool-versions"
+      - ".github/workflows/e2e-test.yaml"
+    branches:
+      - "main"
+      - "release-*"
+  # Run on pull requests matching apps
+  pull_request:
+    paths:
+      - "backend/**"
+      - "tools/e2e_test/**"
+      - ".tool-versions"
+      - ".github/workflows/e2e-test.yaml"
+
+defaults:
+  run:
+    shell: bash
+    working-directory: tools/e2e_test
+env:
+  EDGEHOG_TEST_TENANT: "test"
+  EDGEHOG_TEST_HOSTNAME: "api.edgehog.localhost"
+  EDGEHOG_TEST_BEARER: "eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9.eyJlX3RnYSI6IioiLCJpYXQiOjE3Mzg5NDgzODh9.TTiXYs1LucAnS_6RGp7pWg-S30NSt7eqL7lU8BzT5BWlHctk7NYZwC6lftA6WeEb1HKEJfPoUqWeOeZ6oYA0AA"
+
+jobs:
+  e2e-test:
+    name: End to end
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+        with:
+          show-progress: false
+      - name: Install gleam and BEAM
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: "28"
+          gleam-version: "1.13.0"
+          rebar3-version: "3"
+      - uses: mozilla-actions/sccache-action@v0.0.9
+      - name: Setup `just`
+        uses: extractions/setup-just@v3
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Install astartectl
+        uses: jaxxstorm/action-install-gh-release@v1.10.0
+        with:
+          repo: astarte-platform/astartectl
+      - name: Provision a tenant
+        run: just provision-tenant
+      - name: Run e2e test suite
+        run: |
+          gleam run