Bump plexus-interpolation from 1.21 to 1.26

Bumps [plexus-interpolation](https://github.com/codehaus-plexus/plexus-interpolation) from 1.21 to 1.26.
- [Release notes](https://github.com/codehaus-plexus/plexus-interpolation/releases)
- [Commits](https://github.com/codehaus-plexus/plexus-interpolation/commits/plexus-interpolation-1.26)

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

pom.xml

@@ -175,7 +175,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-interpolation</artifactId>
-      <version>1.21</version>
+      <version>1.26</version>
       <scope>test</scope>
     </dependency>
     <dependency>