chore: remove 'pip install' statements from python_library templates …

…[autoapprove] (#424)

Source-Link: googleapis/synthtool@4826337
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:60a63eddf86c87395b4bb394fdddfe30f84a7726ee8fe0b758ea132c2106ac75

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-cloud-automl/.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:c6c965a4bf40c19011b11f87dbc801a66d3a23fbc6704102be064ef31c51f1c3
-# created: 2022-08-09T15:58:56.463048506Z
+  digest: sha256:60a63eddf86c87395b4bb394fdddfe30f84a7726ee8fe0b758ea132c2106ac75
+# created: 2022-08-24T19:47:37.288818056Z

packages/google-cloud-automl/.kokoro/publish-docs.sh

@@ -21,14 +21,12 @@ export PYTHONUNBUFFERED=1
 export PATH="${HOME}/.local/bin:${PATH}"
 
 # Install nox
-python3 -m pip install --user --upgrade --quiet nox
+python3 -m pip install --require-hashes -r .kokoro/requirements.txt
 python3 -m nox --version
 
 # build docs
 nox -s docs
 
-python3 -m pip install --user gcp-docuploader
-
 # create metadata
 python3 -m docuploader create-metadata \
   --name=$(jq --raw-output '.name // empty' .repo-metadata.json) \

packages/google-cloud-automl/.kokoro/release.sh

@@ -16,12 +16,9 @@
 set -eo pipefail
 
 # Start the releasetool reporter
-python3 -m pip install gcp-releasetool
+python3 -m pip install --require-hashes -r .kokoro/requirements.txt
 python3 -m releasetool publish-reporter-script > /tmp/publisher-script; source /tmp/publisher-script
 
-# Ensure that we have the latest versions of Twine, Wheel, and Setuptools.
-python3 -m pip install --upgrade twine wheel setuptools
-
 # Disable buffering, so that the logs stream through.
 export PYTHONUNBUFFERED=1
 

packages/google-cloud-automl/.kokoro/requirements.in

@@ -0,0 +1,8 @@
+gcp-docuploader
+gcp-releasetool
+importlib-metadata
+typing-extensions
+twine
+wheel
+setuptools
+nox