chore: [autoapprove] update readme_gen.py to include autoescape True (googleapis#455)

Source-Link: googleapis/synthtool@6b4d5a6
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:f792ee1320e03eda2d13a5281a2989f7ed8a9e50b73ef6da97fac7e1e850b149

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

Author: gcf-owl-bot[bot]

.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:bc5eed3804aec2f05fad42aacf973821d9500c174015341f721a984a0825b6fd
-# created: 2022-04-21T15:43:16.246106921Z
+  digest: sha256:f792ee1320e03eda2d13a5281a2989f7ed8a9e50b73ef6da97fac7e1e850b149
+# created: 2022-05-05T15:17:27.599381182Z

scripts/readme-gen/readme_gen.py

@@ -28,7 +28,10 @@
 jinja_env = jinja2.Environment(
     trim_blocks=True,
     loader=jinja2.FileSystemLoader(
-        os.path.abspath(os.path.join(os.path.dirname(__file__), 'templates'))))
+        os.path.abspath(os.path.join(os.path.dirname(__file__), "templates"))
+    ),
+    autoescape=True,
+)
 
 README_TMPL = jinja_env.get_template('README.tmpl.rst')