Bump plantuml from 1.2021.6 to 1.2021.7

Bumps plantuml from 1.2021.6 to 1.2021.7.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

citizen-intelligence-agency/pom.xml

@@ -195,7 +195,7 @@
     <dependency>
       <groupId>net.sourceforge.plantuml</groupId>
       <artifactId>plantuml</artifactId>
-      <version>1.2021.6</version>
+      <version>1.2021.7</version>
       <scope>test</scope>
     </dependency>
     <dependency>