Release v3.13.3

2026-04-02 v3.13.3
  This release includes several bug fixes. This release is ABI
  compatible with the last release. See
  https://aomedia.googlesource.com/aom/+log/v3.13.2..v3.13.3 for all the
  commits in this release.

  - Bug Fixes
    * Commit 4cc0867f: fix multithreading crashes when loop restoration
      filtering is used by the encoder.
    * Commit 74aaa1ef: fix AOM_SCALING_MODE crashes when compound mask
      prediction modes are used by the encoder.

Bug: 498612990