Upgrade to Mongodb 3.11.0-beta2

Closes gh-16798

Author: snicoll

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -149,7 +149,7 @@
 		<mimepull.version>1.9.11</mimepull.version>
 		<mockito.version>2.27.0</mockito.version>
 		<mongo-driver-reactivestreams.version>1.11.0</mongo-driver-reactivestreams.version>
-		<mongodb.version>3.11.0-beta3</mongodb.version>
+		<mongodb.version>3.11.0-beta2</mongodb.version>
 		<mssql-jdbc.version>6.4.0.jre8</mssql-jdbc.version>
 		<mysql.version>8.0.16</mysql.version>
 		<nekohtml.version>1.9.22</nekohtml.version>