chore: generate non-cloud client library (#1770) (#2272)

* chore: add proto group prefix

* add test case for generating google maps

* run new tests in ci

* parameterize group id for proto artifacts

* use helper to compute group id of proto artifacts

* verify non cloud library generation

* change artifact name in golden

* restore new client test

* change description

* change description

* add comments to _proto_group_id
Source-Link: googleapis/synthtool@269a915
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:9bf82029163bc06d58f56682afd1893a42ace3e04b0359accb86f79c6ecdc9f9

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

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,4 +13,4 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
-  digest: sha256:e62f3ea524b11c1cd6ff7f80362736d86c0056631346b5b106a421686fce2726
+  digest: sha256:9bf82029163bc06d58f56682afd1893a42ace3e04b0359accb86f79c6ecdc9f9