CI: Add AM test suite

.github/workflows/test.sh

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+#!/usr/bin/env bash
+
+echo "Hello world"

.github/workflows/test.yml

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+name: "AM test suite 🧪"
+
+env:
+  TERM: xterm
+
+on:
+  push:
+    branches: '**'
+      paths:
+      - 'modules/**'
+      - INSTALL
+      - APP-MANAGER
+      - '!programs/**'
+  pull_request:
+    branches: '**'
+      paths:
+      - 'modules/**'
+      - INSTALL
+      - APP-MANAGER
+      - '!programs/**'
+  workflow_dispatch:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+
+  # t:
+    # name: t
+    # runs-on: ubuntu-22.04
+    # steps:
+      # - uses: actions/checkout@v4
+      # - name: t
+        # run: |
+          # printf '\t...\n\n'
+          # printf '\n\n\t...\n\n'
+          # echo hello
+          # printf '\n\n\tDONE\n\n'
+
+  am:
+    name: Install AM 📝
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install AM
+        run: |
+          ls -al .github/workflows
+          printf '\tSetting up environment...\n'
+          printf '\n\tCreating directory structure...\n'
+          mkdir -p results /usr/local/bin
+          # printf '\n\tUpgrading ubuntu host...\n'
+          # sudo apt update && sudo apt upgrade
+          printf '\n\tInstalling dependencies...\n'
+          sudo apt install -y wget curl zsync 2> /dev/null
+          printf '\n\tMaking needed files executable...\n'
+          chmod +x ./INSTALL .github/workflows/test.sh
+          printf '\n\tInstalling AM...\n'
+          sudo ./INSTALL
+          printf '\n'
+          echo "Installed version: $(am version)"
+          printf '\n\tRunning tests...\n'
+          .github/workflows/test.sh
+          printf '\n\tTest finished succesfully\n'