Update Dockerfile

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@@ -52,6 +52,47 @@ FROM build-${TARGETARCH}
 ARG VERSION_PYCDLIB="1.16.0"
 RUN python3 -m pip install --break-system-packages --no-cache-dir "pycdlib==${VERSION_PYCDLIB}"
 
+RUN python3 - <<'PY'
+from pathlib import Path
+
+path = Path(
+    "/usr/local/lib/python3.13/dist-packages/pycdlib/pycdlib.py"
+)
+
+text = path.read_text()
+
+old = """\
+        num_bytes_to_remove = child.parent.remove_child(
+            child, index, self.logical_block_size
+        )
+"""
+
+new = """\
+        if (
+            index < 0
+            or index >= len(child.parent.children)
+            or child.parent.children[index] is not child
+        ):
+            for actual_index, candidate in enumerate(child.parent.children):
+                if candidate is child:
+                    index = actual_index
+                    break
+            else:
+                raise pycdlibexception.PyCdlibInternalError(
+                    'Child is not present in its recorded parent'
+                )
+
+        num_bytes_to_remove = child.parent.remove_child(
+            child, index, self.logical_block_size
+        )
+"""
+
+if old not in text:
+    raise SystemExit("Expected PyCdlib source block not found")
+
+path.write_text(text.replace(old, new, 1))
+PY
+
 ARG VERSION_ARG="0.00"
 RUN echo "$VERSION_ARG" > /etc/version