Address boot 2.3 upgrade issues

- addressed getClassPathArchives() deprecation
- made temporary change to address super.createClassLoader(URL) call in boot - see https://github.com/spring-projects/spring-boot/pull/20851

pom.xml

@@ -169,33 +169,21 @@
 			</dependencies>
 		</profile>
 	</profiles>
-		<repositories>
+	<repositories>
 		<repository>
 			<id>spring-snapshots</id>
 			<name>Spring Snapshots</name>
 			<url>https://repo.spring.io/libs-snapshot-local</url>
-			<snapshots>
-				<enabled>true</enabled>
-			</snapshots>
-			<releases>
-				<enabled>false</enabled>
-			</releases>
 		</repository>
 		<repository>
 			<id>spring-milestones</id>
 			<name>Spring Milestones</name>
 			<url>https://repo.spring.io/libs-milestone-local</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
 		</repository>
 		<repository>
 			<id>spring-releases</id>
 			<name>Spring Releases</name>
 			<url>https://repo.spring.io/release</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
 		</repository>
 	</repositories>
 	<pluginRepositories>
@@ -203,28 +191,16 @@
 			<id>spring-snapshots</id>
 			<name>Spring Snapshots</name>
 			<url>https://repo.spring.io/libs-snapshot-local</url>
-			<snapshots>
-				<enabled>true</enabled>
-			</snapshots>
-			<releases>
-				<enabled>false</enabled>
-			</releases>
 		</pluginRepository>
 		<pluginRepository>
 			<id>spring-milestones</id>
 			<name>Spring Milestones</name>
 			<url>https://repo.spring.io/libs-milestone-local</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
 		</pluginRepository>
 		<pluginRepository>
 			<id>spring-releases</id>
 			<name>Spring Releases</name>
 			<url>https://repo.spring.io/libs-release-local</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
 		</pluginRepository>
 	</pluginRepositories>
 </project>