message: Fix unit test failures.
  Basis does not support DXT3 so in the past this unit test passed only
  due to the enum translation bug that was recently fixed.
diff: @@ -73,8 +73,8 @@ TEST_F(KtxReaderTest, Ktx2) {
  ktxreader::Ktx2Reader reader(*engine);
  - reader.requestFormat(Texture::InternalFormat::DXT3_SRGBA);
  - reader.requestFormat(Texture::InternalFormat::DXT3_RGBA);
  + reader.requestFormat(Texture::InternalFormat::DXT5_SRGBA);
  + reader.requestFormat(Texture::InternalFormat::DXT5_RGBA);
  // Uncompressed formats are lower priority, so they get added last.
  reader.requestFormat(Texture::InternalFormat::SRGB8_A8);
  @@ -84,7 +84,7 @@ TEST_F(KtxReaderTest, Ktx2) {
  ktxreader::Ktx2Reader::TransferFunction::sRGB);
  ASSERT_NE(tex, nullptr);
  - ASSERT_EQ(tex->getFormat(), Texture::InternalFormat::DXT3_SRGBA);
  + ASSERT_EQ(tex->getFormat(), Texture::InternalFormat::DXT5_SRGBA);
  ASSERT_EQ(tex->getWidth(), 1024);
  engine->destroy(tex);
  