fix(internal/librarian/ruby): pass ruby-cloud-summary generator option alongside description (#7114)

Pass `ruby-cloud-summary` generator option with `sc.Description`
alongside `ruby-cloud-description` when generating Ruby client
libraries.

When `ruby-cloud-description` was passed alone without
`ruby-cloud-summary`, `gapic-generator-cloud` parsed `summary` directly
from `service.yaml` (which preserves internal newlines `\n` from YAML
block scalar parsing `|-`). Because `gem.summary` (with `\n`) did not
equal `gem.description` (with spaces), `gapic-generator-cloud` evaluated
`gem.summary != gem.description` to `true` in
[`gapic-generator-cloud/templates/cloud/wrapper_gem/readme.text.erb`](https://github.com/googleapis/gapic-generator-ruby/blob/5c65b2ab4910da4315fe210a831ad258d5097409/gapic-generator-cloud/templates/cloud/wrapper_gem/readme.text.erb#L3-L9),
causing the summary text to be rendered twice in wrapper gem
`README.md`.

### Code References
- [`buildGAPICOpts` in
`internal/librarian/ruby/generate.go`](https://github.com/googleapis/librarian/blob/089e2153f7ea740abff54f23c4cbc889c3dea34c/internal/librarian/ruby/generate.go#L164-L167)
- [`readme.text.erb` in
`gapic-generator-ruby`](https://github.com/googleapis/gapic-generator-ruby/blob/5c65b2ab4910da4315fe210a831ad258d5097409/gapic-generator-cloud/templates/cloud/wrapper_gem/readme.text.erb#L3-L9)
- [`GemPresenter` in
`gapic-generator-ruby`](https://github.com/googleapis/gapic-generator-ruby/blob/5c65b2ab4910da4315fe210a831ad258d5097409/gapic-generator/lib/gapic/presenters/gem_presenter.rb#L118-L149)

### Verification

Ran `librarian generate google-cloud-asset`:

```diff
--- a/google-cloud-asset/README.md
+++ b/google-cloud-asset/README.md
@@ -1,8 +1,8 @@
 # Ruby Client for the Cloud Asset API

-The Cloud Asset API manages the history and inventory of Google Cloud resources.
+The Cloud Asset API manages the history and inventory of Google Cloud
+resources.

-The Cloud Asset API manages the history and inventory of Google Cloud resources.

 Actual client classes for the various versions of this API are defined in
```

The duplicate summary line is removed and rendered exactly once.

Fixes #7113

Author: suztomo

internal/librarian/ruby/generate.go

@@ -162,7 +162,8 @@ func buildGAPICOpts(api *config.API, library *config.Library, googleapisDir stri
 		opts = append(opts, "service-yaml="+filepath.Join(googleapisDir, sc.ServiceConfig))
 	}
 	if sc != nil && sc.Description != "" {
-		opts = append(opts, "ruby-cloud-description="+escapeRubyCloudOptValue(sc.Description))
+		desc := escapeRubyCloudOptValue(sc.Description)
+		opts = append(opts, "ruby-cloud-description="+desc, "ruby-cloud-summary="+desc)
 	}
 	if gc != "" {
 		opts = append(opts, "grpc-service-config="+filepath.Join(googleapisDir, gc))

internal/librarian/ruby/generate_test.go

@@ -56,6 +56,7 @@ func TestBuildGAPICOpts(t *testing.T) {
 				"ruby-cloud-gem-name=google-cloud-secret_manager-v1",
 				"service-yaml=" + filepath.Join(googleapisDir, "google/cloud/secretmanager/v1/secretmanager_v1.yaml"),
 				"ruby-cloud-description=Stores sensitive data such as API keys\\, passwords\\, and certificates.\nProvides convenience while improving security.",
+				"ruby-cloud-summary=Stores sensitive data such as API keys\\, passwords\\, and certificates.\nProvides convenience while improving security.",
 				"grpc-service-config=" + filepath.Join(googleapisDir, "google/cloud/secretmanager/v1/secretmanager_grpc_service_config.json"),
 				"ruby-cloud-generate-transports=grpc;rest",
 				"ruby-cloud-rest-numeric-enums=true",
@@ -73,6 +74,7 @@ func TestBuildGAPICOpts(t *testing.T) {
 				"ruby-cloud-gem-name=google-cloud-compute-v1",
 				"service-yaml=" + filepath.Join(googleapisDir, "google/cloud/compute/v1/compute_v1.yaml"),
 				"ruby-cloud-description=Compute Engine is an infrastructure as a service (IaaS) product that offers self-managed virtual machine (VM) instances and bare metal instances.",
+				"ruby-cloud-summary=Compute Engine is an infrastructure as a service (IaaS) product that offers self-managed virtual machine (VM) instances and bare metal instances.",
 				"ruby-cloud-generate-transports=rest",
 				"ruby-cloud-rest-numeric-enums=true",
 			},
@@ -94,6 +96,7 @@ func TestBuildGAPICOpts(t *testing.T) {
 				"ruby-cloud-gem-name=google-cloud-secret_manager",
 				"service-yaml=" + filepath.Join(googleapisDir, "google/cloud/secretmanager/v1/secretmanager_v1.yaml"),
 				"ruby-cloud-description=Stores sensitive data such as API keys\\, passwords\\, and certificates.\nProvides convenience while improving security.",
+				"ruby-cloud-summary=Stores sensitive data such as API keys\\, passwords\\, and certificates.\nProvides convenience while improving security.",
 				"grpc-service-config=" + filepath.Join(googleapisDir, "google/cloud/secretmanager/v1/secretmanager_grpc_service_config.json"),
 				"ruby-cloud-generate-transports=grpc;rest",
 				"ruby-cloud-rest-numeric-enums=true",
@@ -115,6 +118,7 @@ func TestBuildGAPICOpts(t *testing.T) {
 				"ruby-cloud-gem-name=google-cloud-secret_manager",
 				"service-yaml=" + filepath.Join(googleapisDir, "google/cloud/secretmanager/v1/secretmanager_v1.yaml"),
 				"ruby-cloud-description=Stores sensitive data such as API keys\\, passwords\\, and certificates.\nProvides convenience while improving security.",
+				"ruby-cloud-summary=Stores sensitive data such as API keys\\, passwords\\, and certificates.\nProvides convenience while improving security.",
 				"grpc-service-config=" + filepath.Join(googleapisDir, "google/cloud/secretmanager/v1/secretmanager_grpc_service_config.json"),
 				"ruby-cloud-generate-transports=grpc;rest",
 				"ruby-cloud-rest-numeric-enums=true",