bump jqwik.version from 1.8.2 to 1.8.4

---
updated-dependencies:
- dependency-name: net.jqwik:jqwik-engine
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: net.jqwik:jqwik-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -35,7 +35,7 @@
     <derby.version>10.17.1.0</derby.version>
     <io7m.api.previousVersion>1.1.0</io7m.api.previousVersion>
     <io7m.java.targetJavaVersion>21</io7m.java.targetJavaVersion>
-    <jqwik.version>1.8.2</jqwik.version>
+    <jqwik.version>1.8.4</jqwik.version>
     <junit.version>5.10.2</junit.version>
   </properties>