Bump org.testcontainers:testcontainers from 1.21.0 to 1.21.1 (jenkinsci#1762)

Author: dependabot[bot]

pom.xml

@@ -197,7 +197,7 @@
     <dependency>
       <groupId>org.testcontainers</groupId>
       <artifactId>testcontainers</artifactId>
-      <version>1.21.0</version>
+      <version>1.21.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>