message: Add instrumented_libraries_release arg to MSAN bots
  Cr-Commit-Position: refs/heads/main@{#38835}
diff: 'gn_args': 'symbol_level=1',
  },
  'msan': {
  - 'gn_args': 'is_msan=true msan_track_origins=2',
  + 'gn_args': 'is_msan=true msan_track_origins=2'
  + ' instrumented_libraries_release = "xenial"',
  },
  'no_goma': {
  'gn_args': 'use_goma=false',
  