Fix graphql imports in reference docs generation

See gh-31809

spring-boot-project/spring-boot-docs/build.gradle

@@ -321,6 +321,9 @@ syncDocumentationSourceForAsciidoctor {
 	from("src/main/groovy") {
 		into "main/groovy"
 	}
+	from("src/main/resources") {
+		into "main/resources"
+	}
 }
 
 syncDocumentationSourceForAsciidoctorMultipage {

spring-boot-project/spring-boot-docs/src/docs/asciidoc/attributes.adoc

@@ -21,6 +21,7 @@
 :docs-java: {docdir}/../main/java/org/springframework/boot/docs
 :docs-kotlin: {docdir}/../main/kotlin/org/springframework/boot/docs
 :docs-groovy: {docdir}/../main/groovy/org/springframework/boot/docs
+:docs-resources: {docdir}/../main/resources
 :spring-boot-code: https://github.com/{github-repo}/tree/{github-tag}
 :spring-boot-api: https://docs.spring.io/spring-boot/docs/{spring-boot-version}/api
 :spring-boot-docs: https://docs.spring.io/spring-boot/docs/{spring-boot-version}/reference

spring-boot-project/spring-boot-docs/src/main/resources/graphql/schema.graphqls

@@ -0,0 +1,29 @@
+type Query {
+    greeting(name: String! = "Spring"): String!
+    project(slug: ID!): Project
+}
+
+""" A Project in the Spring portfolio """
+type Project {
+    """ Unique string id used in URLs """
+    slug: ID!
+    """ Project name """
+    name: String!
+    """ URL of the git repository """
+    repositoryUrl: String!
+    """ Current support status """
+    status: ProjectStatus!
+}
+
+enum ProjectStatus {
+    """ Actively supported by the Spring team """
+    ACTIVE
+    """ Supported by the community """
+    COMMUNITY
+    """ Prototype, not officially supported yet  """
+    INCUBATING
+    """ Project being retired, in maintenance mode """
+    ATTIC
+    """ End-Of-Lifed """
+    EOL
+}