fix(sdk): fix appengine import error (#9323)

sdk/RELEASE.md

@@ -7,6 +7,7 @@
 ## Deprecations
 
 ## Bug fixes and other changes
+* Fix appengine import error [\#9323](https://github.com/kubeflow/pipelines/pull/9323)
 
 ## Documentation updates
 # 2.0.0-beta.15

sdk/python/requirements.in

@@ -22,6 +22,7 @@ protobuf>=3.13.0,<4
 PyYAML>=5.3,<7
 requests-toolbelt>=0.8.0,<1
 tabulate>=0.8.6,<1
+urllib3<2.0.0
 
 ## standard library backports ##
 typing-extensions>=3.7.4,<5; python_version<"3.9"

sdk/python/requirements.txt

@@ -1,5 +1,5 @@
 #
-# This file is autogenerated by pip-compile with Python 3.10
+# This file is autogenerated by pip-compile with Python 3.7
 # by the following command:
 #
 #    pip-compile --no-emit-index-url requirements.in
@@ -41,6 +41,8 @@ googleapis-common-protos==1.56.4
     # via google-api-core
 idna==3.3
     # via requests
+importlib-metadata==6.6.0
+    # via click
 kfp-pipeline-spec==0.2.2
     # via -r requirements.in
 kfp-server-api==2.0.0b1
@@ -90,13 +92,20 @@ six==1.16.0
     #   python-dateutil
 tabulate==0.8.10
     # via -r requirements.in
+typing-extensions==4.5.0 ; python_version < "3.9"
+    # via
+    #   -r requirements.in
+    #   importlib-metadata
 urllib3==1.26.12
     # via
+    #   -r requirements.in
     #   kfp-server-api
     #   kubernetes
     #   requests
 websocket-client==1.4.0
     # via kubernetes
+zipp==3.15.0
+    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools