29231 Replace FragmentShader with FragmentShaderBuilder (cla: yes, waiting for tree to go green, platform-web)

29233 Remove Robolectric and add androidx.tracing to the android_embedding_dependencies package (cla: yes, waiting for tree to go green)

29234 [flutter_releases] Flutter beta 2.7.0-3.0.pre Engine Cherrypicks (cla: yes)

29238 Roll Clang Linux from FMLihg51s… to usfKkGnw0… (cla: yes, waiting for tree to go green)

29239 Update firebase_testlab.py (cla: yes)

29240 Roll Clang Mac from KP-N5ruFe… to HpW96jrB8… (cla: yes, waiting for tree to go green)