Use consistent asciidoctor subs attribute

Closes gh-25101

spring-boot-project/spring-boot-docs/src/docs/asciidoc/getting-started/first-application.adoc

@@ -42,7 +42,7 @@ We need to start by creating a Maven `pom.xml` file.
 The `pom.xml` is the recipe that is used to build your project.
 Open your favorite text editor and add the following:
 
-[source,xml,indent=0,subs="verbatim,quotes,attributes"]
+[source,xml,indent=0,subs="verbatim,attributes"]
 ----
 	<?xml version="1.0" encoding="UTF-8"?>
 	<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
@@ -130,7 +130,7 @@ The `mvn dependency:tree` command prints a tree representation of your project d
 You can see that `spring-boot-starter-parent` provides no dependencies by itself.
 To add the necessary dependencies, edit your `pom.xml` and add the `spring-boot-starter-web` dependency immediately below the `parent` section:
 
-[source,xml,indent=0,subs="verbatim,quotes,attributes"]
+[source,xml,indent=0,subs="verbatim"]
 ----
 	<dependencies>
 		<dependency>
@@ -149,7 +149,7 @@ If you run `mvn dependency:tree` again, you see that there are now a number of a
 To finish our application, we need to create a single Java file.
 By default, Maven compiles sources from `src/main/java`, so you need to create that directory structure and then add a file named `src/main/java/MyApplication.java` to contain the following code:
 
-[source,java,indent=0]
+[source,java,indent=0,subs="verbatim"]
 ----
 include::{docs-java}/gettingstarted/firstapplication/code/MyApplication.java[]
 ----
@@ -208,7 +208,7 @@ Since you used the `spring-boot-starter-parent` POM, you have a useful `run` goa
 Type `mvn spring-boot:run` from the root project directory to start the application.
 You should see output similar to the following:
 
-[indent=0,subs="attributes"]
+[indent=0,subs="verbatim,attributes"]
 ----
 	$ mvn spring-boot:run
 
@@ -257,7 +257,7 @@ Spring Boot takes a <<executable-jar#executable-jar, different approach>> and le
 To create an executable jar, we need to add the `spring-boot-maven-plugin` to our `pom.xml`.
 To do so, insert the following lines just below the `dependencies` section:
 
-[source,xml,indent=0,subs="verbatim,quotes,attributes"]
+[source,xml,indent=0,subs="verbatim"]
 ----
 	<build>
 		<plugins>
@@ -275,7 +275,7 @@ See the {spring-boot-maven-plugin-docs}#getting-started[plugin documentation] fo
 
 Save your `pom.xml` and run `mvn package` from the command line, as follows:
 
-[indent=0,subs="attributes"]
+[indent=0,subs="verbatim,attributes"]
 ----
 	$ mvn package
 
@@ -308,7 +308,7 @@ This is the original jar file that Maven created before it was repackaged by Spr
 
 To run that application, use the `java -jar` command, as follows:
 
-[indent=0,subs="attributes"]
+[indent=0,subs="verbatim,attributes"]
 ----
 	$ java -jar target/myproject-0.0.1-SNAPSHOT.jar
 

spring-boot-project/spring-boot-docs/src/docs/asciidoc/getting-started/installing.adoc

@@ -93,7 +93,7 @@ Alternatively, you can use `java -jar` with the `.jar` file (the script helps yo
 SDKMAN! (The Software Development Kit Manager) can be used for managing multiple versions of various binary SDKs, including Groovy and the Spring Boot CLI.
 Get SDKMAN! from https://sdkman.io and install Spring Boot by using the following commands:
 
-[indent=0,subs="verbatim,quotes,attributes"]
+[indent=0,subs="verbatim,attributes"]
 ----
 	$ sdk install springboot
 	$ spring --version
@@ -102,7 +102,7 @@ Get SDKMAN! from https://sdkman.io and install Spring Boot by using the followin
 
 If you develop features for the CLI and want access to the version you built, use the following commands:
 
-[indent=0,subs="verbatim,quotes,attributes"]
+[indent=0,subs="verbatim,attributes"]
 ----
 	$ sdk install springboot dev /path/to/spring-boot/spring-boot-cli/target/spring-boot-cli-{spring-boot-version}-bin/spring-{spring-boot-version}/
 	$ sdk default springboot dev
@@ -115,7 +115,7 @@ It points at your target build location, so every time you rebuild Spring Boot,
 
 You can see it by running the following command:
 
-[indent=0,subs="verbatim,quotes,attributes"]
+[indent=0,subs="verbatim,attributes"]
 ----
 	$ sdk ls springboot
 
@@ -202,7 +202,7 @@ In that case, run `scoop update` and try again.
 You can use the following web application to test your installation.
 To start, create a file called `app.groovy`, as follows:
 
-[source,groovy,indent=0,subs="verbatim,quotes,attributes"]
+[source,groovy,indent=0,pending-extract=true,subs="verbatim"]
 ----
 	@RestController
 	class ThisWillActuallyRun {
@@ -244,7 +244,7 @@ When upgrading to a new feature release, some properties may have been renamed o
 Spring Boot provides a way to analyze your application's environment and print diagnostics at startup, but also temporarily migrate properties at runtime for you.
 To enable that feature, add the following dependency to your project:
 
-[source,xml,indent=0]
+[source,xml,indent=0,subs="verbatim"]
 ----
 	<dependency>
 		<groupId>org.springframework.boot</groupId>