Upgrade to Sendgrid 4.0.1

Closes gh-9469

spring-boot-dependencies/pom.xml

@@ -147,7 +147,7 @@
 		<rxjava2.version>2.1.0</rxjava2.version>
 		<selenium.version>3.4.0</selenium.version>
 		<selenium-htmlunit.version>2.26</selenium-htmlunit.version>
-		<sendgrid.version>3.2.0</sendgrid.version>
+		<sendgrid.version>4.0.1</sendgrid.version>
 		<servlet-api.version>3.1.0</servlet-api.version>
 		<simple-json.version>1.1.1</simple-json.version>
 		<slf4j.version>1.7.25</slf4j.version>