Merge pull request #323 from zonkyio/testcontainers-1.21.4

#322 Upgrade to Testcontainers 1.21.4

Author: tomix26

build.gradle

@@ -269,10 +269,10 @@ project(':embedded-database-spring-test') {
         compileOnly project(':spring-boot-4-stubs')
         testCompileOnly project(':spring-boot-4-stubs')
 
-        api 'org.testcontainers:postgresql:1.18.3'
-        api 'org.testcontainers:mssqlserver:1.18.3'
-        api 'org.testcontainers:mysql:1.18.3'
-        api 'org.testcontainers:mariadb:1.18.3'
+        api 'org.testcontainers:postgresql:1.21.4'
+        api 'org.testcontainers:mssqlserver:1.21.4'
+        api 'org.testcontainers:mysql:1.21.4'
+        api 'org.testcontainers:mariadb:1.21.4'
 
         optImplementation 'io.zonky.test:embedded-postgres:2.2.0'
         optImplementation 'com.opentable.components:otj-pg-embedded:0.13.4'