Fix build on Windows

initializr-generator/src/test/java/io/spring/initializr/generator/buildsystem/gradle/GroovyDslGradleBuildWriterTests.java

@@ -563,7 +563,7 @@ private String write(GradleBuild build) {
 	private String write(GroovyDslGradleBuildWriter writer, GradleBuild build) {
 		StringWriter out = new StringWriter();
 		writer.writeTo(new IndentingWriter(out, new SimpleIndentStrategy("\t")), build);
-		return out.toString();
+		return out.toString().replace("\r\n", "\n");
 	}
 
 }

initializr-generator/src/test/java/io/spring/initializr/generator/buildsystem/gradle/GroovyDslGradleSettingsWriterTests.java

@@ -118,7 +118,7 @@ private String generateSettings(GradleBuild build) {
 		GradleSettingsWriter writer = new GroovyDslGradleSettingsWriter();
 		StringWriter out = new StringWriter();
 		writer.writeTo(new IndentingWriter(out, new SimpleIndentStrategy("\t")), build);
-		return out.toString();
+		return out.toString().replace("\r\n", "\n");
 	}
 
 }

initializr-generator/src/test/java/io/spring/initializr/generator/buildsystem/gradle/KotlinDslGradleBuildWriterTests.java

@@ -582,7 +582,7 @@ private String generateBuild(GradleBuild build) {
 	private String generateBuild(KotlinDslGradleBuildWriter writer, GradleBuild build) {
 		StringWriter out = new StringWriter();
 		writer.writeTo(new IndentingWriter(out, new SimpleIndentStrategy("\t")), build);
-		return out.toString();
+		return out.toString().replace("\r\n", "\n");
 	}
 
 }

initializr-generator/src/test/java/io/spring/initializr/generator/buildsystem/gradle/KotlinDslGradleSettingsWriterTests.java

@@ -117,7 +117,7 @@ private String generateSettings(GradleBuild build) {
 		GradleSettingsWriter writer = new KotlinDslGradleSettingsWriter();
 		StringWriter out = new StringWriter();
 		writer.writeTo(new IndentingWriter(out, new SimpleIndentStrategy("\t")), build);
-		return out.toString();
+		return out.toString().replace("\r\n", "\n");
 	}
 
 }

initializr-generator/src/test/java/io/spring/initializr/generator/io/IndentingWriterTests.java

@@ -104,7 +104,7 @@ void defaultIndentStrategyIsUsed() throws IOException {
 	}
 
 	private String content() {
-		return this.stringWriter.toString();
+		return this.stringWriter.toString().replace("\r\n", "\n");
 	}
 
 }