added CI job

.forgejo/workflows/bbb.yml

@@ -0,0 +1,46 @@
+name: BeagleBone Black Buildroot
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: docker
+    container:
+      image: ghcr.io/catthehacker/ubuntu:act-22.04
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Install dependencies
+        run: |
+          apt-get update
+          apt-get install -y build-essential libncurses5-dev rsync unzip bc wget cpio python3 python3-pip file
+
+      - name: Configure Buildroot
+        run: |
+          make beaglebone_defconfig
+
+      - name: Build system
+        run: |
+          make -j$(nproc)
+
+      - name: Create artifact directory
+        run: |
+          mkdir -p artifacts
+          cp output/images/zImage artifacts/
+          cp output/images/rootfs.ext2 artifacts/
+          cp output/images/am335x-boneblack.dtb artifacts/
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: beaglebone-black-images
+          path: artifacts/
+
+