Add dependency management for Commons Lang3

Closes gh-7896

spring-boot-dependencies/pom.xml

@@ -63,6 +63,7 @@
 		<commons-codec.version>1.10</commons-codec.version>
 		<commons-dbcp2.version>2.1.1</commons-dbcp2.version>
 		<commons-digester.version>2.1</commons-digester.version>
+		<commons-lang3.version>3.5</commons-lang3.version>
 		<commons-pool.version>1.6</commons-pool.version>
 		<commons-pool2.version>2.4.2</commons-pool2.version>
 		<couchbase-client.version>2.4.1</couchbase-client.version>
@@ -1226,6 +1227,11 @@
 				<artifactId>commons-dbcp2</artifactId>
 				<version>${commons-dbcp2.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.apache.commons</groupId>
+				<artifactId>commons-lang3</artifactId>
+				<version>${commons-lang3.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.apache.commons</groupId>
 				<artifactId>commons-pool2</artifactId>