build(deps): bump testcontainers.version from 1.20.6 to 1.21.0 (#339)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -92,7 +92,7 @@
         <slf4j.version>1.7.36</slf4j.version>
         <sortpom-maven-plugin.version>4.0.0</sortpom-maven-plugin.version>
         <spotless-maven-plugin.version>2.44.4</spotless-maven-plugin.version>
-        <testcontainers.version>1.20.6</testcontainers.version>
+        <testcontainers.version>1.21.0</testcontainers.version>
     </properties>
     <dependencyManagement>
         <dependencies>