Bump commons-email from 1.1 to 1.5

Bumps commons-email from 1.1 to 1.5.

---
updated-dependencies:
- dependency-name: org.apache.commons:commons-email
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 6f811e2..03653a9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -161,7 +161,7 @@
     <commons-compress.version>20050911</commons-compress.version>
     <commons-digester.version>1.8.1</commons-digester.version>
     <commons-discovery.version>0.5</commons-discovery.version>
-    <commons-email.version>1.1</commons-email.version>
+    <commons-email.version>1.5</commons-email.version>
     <commons-httpclient.version>3.1</commons-httpclient.version>
     <commons-io.version>2.1</commons-io.version>
     <commons-lang.version>2.6</commons-lang.version>