Bump io.avaje:avaje-prisms from 1.20 to 1.21

Bumps [io.avaje:avaje-prisms](https://github.com/avaje/avaje-prisms) from 1.20 to 1.21.
- [Release notes](https://github.com/avaje/avaje-prisms/releases)
- [Commits](https://github.com/avaje/avaje-prisms/commits)

---
updated-dependencies:
- dependency-name: io.avaje:avaje-prisms
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

jsonb-generator/pom.xml

@@ -11,7 +11,7 @@
   <name>jsonb generator</name>
   <description>annotation processor generating source code json adapters for avaje-jsonb</description>
   <properties>
-    <avaje.prisms.version>1.20</avaje.prisms.version>
+    <avaje.prisms.version>1.21</avaje.prisms.version>
   </properties>
 
   <dependencies>