docs: [owlbot-java] samples do not need deploy plugin and deps upgrade (#1583) (#1265)

* docs: samples do not need deploy plugin * deps: upgrading shared deps 3.0.3 * fixing golden test Source-Link: googleapis/synthtool@b61387e Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:23f5a406dfc9a62e61c4fb11e343f7f9f21af15b5b1f23d0535a10294ee337fd Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> Co-authored-by: Diego Alonso Marquez Palacios <diegomarquezp@google.com>

Author: gcf-owl-bot[bot]