Upgrade to Flyway 4.1.2

Closes gh-8752

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -489,15 +489,20 @@ content into your application; rather pick only the properties that you need.
 	# ----------------------------------------
 
 	# FLYWAY ({sc-spring-boot-autoconfigure}/flyway/FlywayProperties.{sc-ext}[FlywayProperties])
+	flyway.allow-mixed-migrations= #
 	flyway.baseline-description= #
-	flyway.baseline-version=1 # version to start migration
 	flyway.baseline-on-migrate= #
+	flyway.baseline-version=1 # version to start migration
 	flyway.check-location=false # Check that migration scripts location exists.
+	flyway.clean-disabled= #
 	flyway.clean-on-validation-error= #
 	flyway.enabled=true # Enable flyway.
 	flyway.encoding= #
 	flyway.ignore-failed-future-migration= #
+	flyway.ignore-future-migrations= #
+	flyway.ignore-missing-migrations= #
 	flyway.init-sqls= # SQL statements to execute to initialize a connection immediately after obtaining it.
+	flyway.installed-by= #
 	flyway.locations=classpath:db/migration # locations of migrations scripts
 	flyway.out-of-order= #
 	flyway.password= # JDBC password if you want Flyway to create its own DataSource
@@ -505,11 +510,15 @@ content into your application; rather pick only the properties that you need.
 	flyway.placeholder-replacement= #
 	flyway.placeholder-suffix= #
 	flyway.placeholders.*= #
+	flyway.repeatable-sql-migration-prefix= #
 	flyway.schemas= # schemas to update
+	flyway.skip-default-callbacks= #
+	flyway.skip-default-resolvers= #
 	flyway.sql-migration-prefix=V #
 	flyway.sql-migration-separator= #
 	flyway.sql-migration-suffix=.sql #
 	flyway.table= #
+	flyway.target= #
 	flyway.url= # JDBC url of the database to migrate. If not set, the primary configured data source is used.
 	flyway.user= # Login user of the database to migrate.
 	flyway.validate-on-migrate= #