Bump dev.openfga:openfga-sdk from 0.9.4 to 0.9.6 in /modules/openfga

Bumps [dev.openfga:openfga-sdk](https://github.com/openfga/java-sdk) from 0.9.4 to 0.9.6.
- [Release notes](https://github.com/openfga/java-sdk/releases)
- [Changelog](https://github.com/openfga/java-sdk/blob/main/CHANGELOG.md)
- [Commits](openfga/java-sdk@v0.9.4...v0.9.6)

---
updated-dependencies:
- dependency-name: dev.openfga:openfga-sdk
  dependency-version: 0.9.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

modules/openfga/build.gradle

@@ -3,7 +3,7 @@ description = "Testcontainers :: OpenFGA"
 dependencies {
     api project(':testcontainers')
 
-    testImplementation 'dev.openfga:openfga-sdk:0.9.4'
+    testImplementation 'dev.openfga:openfga-sdk:0.9.6'
 }
 
 test {