Merge pull request #967 from jenkinsci/dependabot/maven/org.testcontainers-testcontainers-1.21.0

Bump org.testcontainers:testcontainers from 1.20.6 to 1.21.0

Author: uhafner

plugin/pom.xml

@@ -44,7 +44,7 @@
 
     <!-- Library Dependencies Versions -->
     <eclipse-collections.version>9.2.0</eclipse-collections.version>
-    <testcontainers.version>1.20.6</testcontainers.version>
+    <testcontainers.version>1.21.0</testcontainers.version>
 
     <!-- Maven Surefire ArgLine -->
     <argLine>-Djava.awt.headless=true -Xmx1024m -Djenkins.test.timeout=1000 --add-opens java.base/java.lang=ALL-UNNAMED