Apply updates from cookiecutter

This automated commit applies the latest updates from our cookiecutters [1] to
this repo.

[1]: https://github.com/hypothesis/cookiecutters

.cookiecutter/includes/gitignore

@@ -1,2 +1,12 @@
 via/static/**/*.gz
 build.tar
+
+# See https://yarnpkg.com/getting-started/qa#which-files-should-be-gitignored.
+# This is the "If you're not using Zero-Installs" list.
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

.cookiecutter/includes/requirements/prod.in

@@ -8,11 +8,9 @@ pyramid-exclog
 pyramid-jinja2
 pyramid-sanity
 pyramid-services
-pyramid-tm
 requests
 whitenoise
 google-auth-oauthlib
 marshmallow
 webargs
 youtube-transcript-api
-zope.sqlalchemy

requirements/prod.in

@@ -4,6 +4,8 @@ newrelic
 sqlalchemy
 psycopg2
 alembic
+pyramid-tm
+zope.sqlalchemy
 checkmatelib
 h-assets
 h-pyramid-sentry
@@ -14,11 +16,9 @@ pyramid-exclog
 pyramid-jinja2
 pyramid-sanity
 pyramid-services
-pyramid-tm
 requests
 whitenoise
 google-auth-oauthlib
 marshmallow
 webargs
 youtube-transcript-api
-zope.sqlalchemy