Use proper Debian package building approach

- Replace manual package installation with 'apt build-dep -y .'
- Use 'debuild -b -us -uc' instead of dpkg-buildpackage
- Follow standard Debian package building workflow
- Much simpler and more reliable than manual dependency management
- This is the proper way to build Debian packages

.forgejo/workflows/ci.yml

@@ -59,9 +59,9 @@ jobs:
           git fetch --all
           git checkout ${{ github.sha || gitea.sha || 'main' }}
 
-      - name: Clone ostree from Debian sid
+      - name: Download and extract ostree source
         run: |
-          echo "Cloning ostree from Debian sid..."
+          echo "Downloading ostree source package..."
           cd /tmp
           apt source ostree || { echo "apt source ostree failed!"; exit 1; }
           cd ostree-* || { echo "Failed to change to ostree directory!"; exit 1; }
@@ -71,37 +71,9 @@ jobs:
 
       - name: Install build dependencies
         run: |
-          echo "Installing build dependencies..."
+          echo "Installing build dependencies using apt build-dep..."
           cd /tmp/ostree-*
-          # Install only essential build dependencies, avoid GUI packages
-          apt-get install -y \
-            libglib2.0-dev \
-            libfuse3-dev \
-            libsystemd-dev \
-            libgpgme-dev \
-            libarchive-dev \
-            libcurl4-openssl-dev \
-            libsoup2.4-dev \
-            libjson-glib-dev \
-            libyaml-dev \
-            libgirepository1.0-dev \
-            pkg-config \
-            meson \
-            ninja-build \
-            gtk-doc-tools \
-            libcap-dev \
-            libseccomp-dev \
-            libselinux1-dev \
-            libmount-dev \
-            libblkid-dev \
-            libkmod-dev \
-            libcryptsetup-dev \
-            liblzma-dev \
-            libzstd-dev \
-            libbrotli-dev \
-            zlib1g-dev \
-            libbz2-dev \
-            liblz4-dev
+          apt build-dep -y . || { echo "apt build-dep failed!"; exit 1; }
 
       - name: Add backport revision number
         run: |
@@ -112,27 +84,16 @@ jobs:
           export EDITOR="nano"
           echo "y" | dch --bpo || echo "dch --bpo failed, continuing..."
 
-      - name: Test build
-        run: |
-          echo "Testing build with fakeroot debian/rules binary..."
-          cd /tmp/ostree-*
-          if fakeroot debian/rules binary; then
-            echo "Test build successful!"
-          else
-            echo "Test build failed!"
-            exit 1
-          fi
-
       - name: Build packages
         run: |
-          echo "Building ostree packages..."
+          echo "Building ostree packages using debuild..."
           cd /tmp/ostree-*
           echo "Current directory before build:"
           pwd
           ls -la
           
-          echo "Running dpkg-buildpackage..."
-          if dpkg-buildpackage --build=binary --unsigned-changes; then
+          echo "Running debuild -b -us -uc..."
+          if debuild -b -us -uc; then
             echo "Build successful!"
           else
             echo "Build failed! Checking for any partial packages..."