fix: add Docker image mapping for DEB builds in full-build workflow

The build-deb job was passing the distribution name (e.g., "ubuntu-24.04")
directly to build_deb.sh instead of the Docker image name (e.g., "ubuntu:24.04").
This caused Docker to fail with "repository does not exist" error.

Added case statement to map distribution names to Docker image names,
matching the approach already used in release.yml workflow.

Fixes DEB package builds in full-build workflow.

Author: SckyzO

.github/workflows/full-build.yml

@@ -507,6 +507,15 @@ jobs:
           arch="${{ matrix.arch }}"
           dist="${{ matrix.dist }}"
 
+          # Map distribution name to Docker image
+          case $dist in
+            ubuntu-22.04) image="ubuntu:22.04" ;;
+            ubuntu-24.04) image="ubuntu:24.04" ;;
+            debian-12) image="debian:12" ;;
+            debian-13) image="debian:trixie" ;;
+            *) echo "Error: Unknown distribution: $dist"; exit 1 ;;
+          esac
+
           echo "::group::🔧 Generating build files"
           build_dir="build/$exporter-$arch-$dist"
           python3 -m core.engine.builder \
@@ -516,9 +525,9 @@ jobs:
           echo "::endgroup::"
 
           if [ -d "$build_dir/debian" ]; then
-            echo "::group::🐳 Building DEB package"
+            echo "::group::🐳 Building DEB package ($image)"
             chmod +x core/scripts/build_deb.sh
-            ./core/scripts/build_deb.sh "$build_dir" "$build_dir/debs" "$arch" "$dist"
+            ./core/scripts/build_deb.sh "$build_dir" "$build_dir/debs" "$arch" "$image"
             echo "::endgroup::"
           fi