* ci(showcase): add showcase IT coverage

* ci(showcase): rework showcase coverage for combined report

* chore(deps): update dependency gradle to v7.6 (#1101)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [gradle](https://gradle.org) ([source](https://togithub.com/gradle/gradle)) | minor | `7.5.1` -> `7.6` |

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* ci(showcase): debug showcase integration coverage report in sonar

* ci(showcase): remove duplicate bazel coverage stage

* ci(showcase): invoke sonar after integration tests

* ci(showcase): debug with maven and sonar

* ci(showcase): attempt sonar workaround for lcov coverage parsing

* chore(showcase): create maven showcase module

* chore: relocate gapic-generator-java pom.xml to subfolder

* fix: ensure all tests work with new project structure

* fix: set surefire working directory, and revert source adjustments

* fix: formatter

* chore: relocate gapic-generator-java pom.xml to subfolder (#1105)

* chore: relocate gapic-generator-java pom.xml to subfolder

* fix: ensure all tests work with new project structure

* fix: set surefire working directory, and revert source adjustments

* fix: formatter

* chore: update showcase maven module to generate and verify golden source

* chore: update showcase maven module to generate and verify golden source

* chore: add showcase golden source to maven submodule

* chore: upload two coverage reports to sonar

* chore: show proto folder contents during verify_proto

* fix: only diff proto src/main/java, ignoring src/main/proto

* chore(main): release 2.11.0 (#1081)

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

* chore: change showcase version to 0.0.1-SNAPSHOT

* chore: add mvn -version to sonar workflow

* fix: set showcase client to 0.0.1-SNAPSHOT

* fix: explicitly set shade plugin output directory

* chore: remove aggregator from build

* fix: coverage report locations

* fix: skip linting on generated showcase files

* fix: sonar coverage for non-standard directory structure (#1108)

* fix: exclude generated showcase from license header check

* fix: single-line 'find' syntax

* fix: use provided ignore flag

* ci(showcase): rework github actions for showcase golden and integration tests

* ci(showcase): simplify sonar github actions workflow

* ci(showcase): remove showcase from /test/integration golden suite

* ci(showcase): simplify showcase invocation

* fix(showcase): ensure generated showcase protos are not deleted

* ci(showcase): update workflow and documentation for showcase

* ci(showcase): disable snippet-bot for generated showcase client

* ci(showcase): disable snippet-bot for showcase (#1113)

Co-authored-by: Mend Renovate <bot@renovateapp.com>
Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

* chore: relocate gapic-generator-java pom.xml to subfolder

* fix: ensure all tests work with new project structure

* fix: set surefire working directory, and revert source adjustments

* fix: formatter