svglib v2.3.1

Security

• Rendering an SVG could be made to take exponential time and memory through
  nested <use> elements, where each level references a group containing many
  <use> elements of the previous level (CWE-400, GHSA-555j-qj3j-c8jv).
  renderUse() now stops after MAX_USE_EXPANSIONS (10,000) expansions per
  document, logs one error and skips the remaining <use> elements. The budget
  is shared with the renderers of external SVG files, so referencing many
  external files does not reset it.