Update keras and estimator deps

PiperOrigin-RevId: 389672438
Change-Id: Iaee9f29c10caeffad752009faa1fcafab7935b67

tensorflow/tools/pip_package/setup.py

@@ -102,8 +102,8 @@
     # They are updated during the release process
     # When updating these, please also update the nightly versions below
     'tensorboard ~= 2.6',
-    'tensorflow-estimator >= 2.6.0rc0 , < 2.7.0',
-    'keras >= 2.6.0rc1 , < 2.7.0',
+    'tensorflow_estimator ~= 2.6',
+    'keras ~= 2.6',
 ]
 
 
@@ -117,9 +117,9 @@
     if 'tensorboard' in pkg:
       REQUIRED_PACKAGES[i] = 'tb-nightly ~= 2.7.0.a'
     elif 'tensorflow_estimator' in pkg:
-      REQUIRED_PACKAGES[i] = 'tf-estimator-nightly ~= 2.6.0.dev'
+      REQUIRED_PACKAGES[i] = 'tf-estimator-nightly ~= 2.7.0.dev'
     elif 'keras' in pkg and 'keras_preprocessing' not in pkg:
-      REQUIRED_PACKAGES[i] = 'keras-nightly ~= 2.6.0.dev'
+      REQUIRED_PACKAGES[i] = 'keras-nightly ~= 2.7.0.dev'
 
 
 # grpcio does not build correctly on big-endian machines due to lack of