Bumping google-cloud-aiplatform to 1.4.3 or below (#4304)

* Update dependencies.py

* Update RELEASE.md

Author: dhruvesh09

RELEASE.md

@@ -47,6 +47,7 @@
 *   Fixed missing type information marker file 'py.typed'.
 *   Depends on `apache-beam[gcp]>=2.32,<3`.
 *   Depends on `google-cloud-bigquery>=1.28.0,<3`.
+*   Depends on `google-cloud-aiplatform>=0.5.0,<=1.4.3`.
 *   Depends on `jinja2>=2.7.3,<4`, i.e. now supports Jinja 3.x.
 *   Depends on `keras-tuner>=1.0.4,<2`.
 *   Depends on `kfp>=1.6.1,!=1.7.2,<1.8.2` in \[kfp\] extra.

tfx/dependencies.py

@@ -76,7 +76,7 @@ def make_required_install_packages():
       'apache-beam[gcp]>=2.32,<3',
       'attrs>=19.3.0,<21',
       'click>=7,<8',
-      'google-cloud-aiplatform>=0.5.0,<0.8',
+      'google-cloud-aiplatform>=0.5.0,<=1.4.3',
       'google-cloud-bigquery>=2.26.0,<3',
       'grpcio>=1.28.1,<2',
       'keras-tuner>=1.0.4,<2',