Add GitHub workflow

.github/workflows/test.yml

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+name: Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Install Task
+        uses: arduino/setup-task@v2
+
+      - name: Run test
+        run: task test
+
+      - name: Run build-container
+        run: task build-container

installs/mise.sh

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+#!/usr/bin/env bash
+
+# From: https://mise.jdx.dev/getting-started.html#apt
+
+apt update -y && apt install -y gpg sudo wget curl
+sudo install -dm 755 /etc/apt/keyrings
+wget -qO - https://mise.jdx.dev/gpg-key.pub | gpg --dearmor | sudo tee /etc/apt/keyrings/mise-archive-keyring.gpg 1> /dev/null
+echo "deb [signed-by=/etc/apt/keyrings/mise-archive-keyring.gpg arch=amd64] https://mise.jdx.dev/deb stable main" | sudo tee /etc/apt/sources.list.d/mise.list
+sudo apt update
+sudo apt install -y mise