Bump commons-configuration2 from 2.6 to 2.7

Bumps commons-configuration2 from 2.6 to 2.7.
Signed-off-by: Ndependabot[bot] <support@github.com>

pom.xml

@@ -38,7 +38,7 @@
         <poi.version>4.1.1</poi.version>
         <spring-boot-admin.version>2.1.6</spring-boot-admin.version>
         <velocity.version>1.7</velocity.version>
-        <commons-configuration2.version>2.6</commons-configuration2.version>
+        <commons-configuration2.version>2.7</commons-configuration2.version>
         <txlcn.version>5.0.2.RELEASE</txlcn.version>
         <fastdfs-client.version>1.26.7</fastdfs-client.version>
         <userAgent.version>1.21</userAgent.version>