Add build github workflow

Author: iKapitonau

.github/workflows/build.yaml

@@ -0,0 +1,29 @@
+name: Build
+
+on:
+  push:
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+" # Push events to matching v*, i.e. v1.0, v20.15.10
+      - "v[0-9]+.[0-9]+.[0-9]+-alpha.[0-9]+" # Push events to matching alpha releases
+      - "v[0-9]+.[0-9]+.[0-9]+-beta.[0-9]+" # Push events to matching beta releases
+      - "v[0-9]+.[0-9]+.[0-9]+-patch.[0-9]+" # Push events to matching beta releases
+      - "v[0-9]+.[0-9]+.[0-9]+-rc.[0-9]+" # Push events to matching rc releases
+
+jobs:
+  build:
+    runs-on: secret-vm-build-runner
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: build
+        run: scripts/build_reproducible.sh
+      - uses: actions/upload-artifact@v4
+        with:
+          path: |
+            artifacts/rootfs.iso
+            artifacts/rootfs-gpu.iso
+            artifacts/ovmf.fd
+            artifacts/bzImage
+            artifacts/initramfs.cpio.gz
+          name: artifacts