Bump com.github.jnr:jnr-posix from 3.1.19 to 3.1.20

Bumps [com.github.jnr:jnr-posix](https://github.com/jnr/jnr-posix) from 3.1.19 to 3.1.20.
- [Commits](jnr/jnr-posix@jnr-posix-3.1.19...jnr-posix-3.1.20)

---
updated-dependencies:
- dependency-name: com.github.jnr:jnr-posix
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

bom/build.gradle

@@ -105,7 +105,7 @@ ext {
     validationVersion = '2.0.1.Final'
     gsonVersion = '2.11.0'
     antVersion = '1.10.15'
-    jnrVersion = '3.1.19'
+    jnrVersion = '3.1.20'
     //cassandraVersion 5.0.1 doesn't work
     cassandraVersion = '4.1.5'
     protobufVersion = '3.25.5'