Handle broken symlinks in release scope copy

- Skip symlinks with non-existent targets (e.g., external/ArcGIS)
- Prevents FileNotFoundError during package build

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

make_rpm_ubuntu26.py

@@ -163,9 +163,14 @@ def copy_src_dir_to_dest_dir(srcdir, dstdir, perm=None, with_subdirs=True, relea
                 if release_scope and rel_root == '.':
                     if file not in release_items and not any(file == item.split('/')[0] for item in release_items if '/' in item):
                         continue
+                src_path = os.path.join(root, file)
+                # Skip broken symlinks
+                if os.path.islink(src_path) and not os.path.exists(src_path):
+                    debug(f"Skipping broken symlink: {src_path}")
+                    continue
                 if os.path.isfile(tmpdir) and os.path.exists(tmpdir):
                     os.remove(tmpdir)
-                shutil.copy(os.path.join(root, file), tmpdir)
+                shutil.copy(src_path, tmpdir, follow_symlinks=True)
                 if perm:
                     f = os.path.join(tmpdir, file)
                     add_perm = 0