update tensorflow version to 2.4.0 and bump up TFlite Model Maker version.

PiperOrigin-RevId: 349399275

Author: ziyeqinghan

tensorflow_examples/lite/model_maker/pip_package/setup.py

@@ -58,13 +58,13 @@
 
 if nightly:
   project_name = '{}-nightly'.format(project_name)
-  version = '0.2.4'  # Version prefix, usually major.minor.micro.
+  version = '0.2.5'  # Version prefix, usually major.minor.micro.
   version = '{:s}.dev{:s}'.format(version, datestring)
   classifiers += [
       'Development Status :: 4 - Beta',
   ]
 else:
-  version = '0.2.3'
+  version = '0.2.4'
 
 # Path to folder model_maker.
 BASE_DIR = pathlib.Path(os.path.abspath(__file__)).parents[1]

tensorflow_examples/lite/model_maker/requirements.txt

@@ -10,7 +10,7 @@ absl-py<0.11>=0.10.0
 urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1
 tflite-support==0.1.0rc4
 tensorflowjs>=2.4.0
-tensorflow==2.4.0rc0
+tensorflow>=2.4.0
 librosa>=0.5
 lxml>=4.6.1
 PyYAML>=5.1