Update kokoro/docs/publish-python.sh
Update kokoro/docs/publish-python.sh to use the latest version of protoc and python.
This will make [the python doc-publishing job](https://fusion.corp.google.com/projectanalysis/summary/KOKORO/prod:cloud-devrel%2Fclient-libraries%2Fprotobuf%2Fdocs%2Fpython) pass again.
diff --git a/kokoro/docs/publish-python.sh b/kokoro/docs/publish-python.sh
index eea1755..457a24f 100755
--- a/kokoro/docs/publish-python.sh
+++ b/kokoro/docs/publish-python.sh
@@ -14,10 +14,10 @@
sudo add-apt-repository universe
sudo apt-get update
sudo apt-get -y install unzip
-wget https://github.com/protocolbuffers/protobuf/releases/download/v3.11.2/protoc-3.11.2-linux-x86_64.zip
-unzip protoc-3.11.2-linux-x86_64.zip bin/protoc
+wget https://github.com/protocolbuffers/protobuf/releases/download/v3.15.8/protoc-3.15.8-linux-x86_64.zip
+unzip protoc-3.15.8-linux-x86_64.zip bin/protoc
mv bin/protoc ../src/protoc
-python3.6 -m venv venv
+python3 -m venv venv
source venv/bin/activate
python setup.py install
@@ -30,13 +30,13 @@
cd ..
deactivate
-python3.6 -m pip install protobuf==3.11.1 gcp-docuploader
+python3 -m pip install protobuf==3.15.8 gcp-docuploader
# install a json parser
sudo apt-get -y install jq
# create metadata
-python3.6 -m docuploader create-metadata \
+python3 -m docuploader create-metadata \
--name=$(jq --raw-output '.name // empty' .repo-metadata.json) \
--version=$(python3 setup.py --version) \
--language=$(jq --raw-output '.language // empty' .repo-metadata.json) \
@@ -48,4 +48,4 @@
cat docs.metadata
# upload docs
-python3.6 -m docuploader upload docs/_build/html --metadata-file docs.metadata --staging-bucket docs-staging
+python3 -m docuploader upload docs/_build/html --metadata-file docs.metadata --staging-bucket docs-staging
