fix(deps): bump tech.relaycorp:awala-testing from 1.5.27 to 1.5.31

Bumps [tech.relaycorp:awala-testing](https://github.com/relaycorp/awala-testing-jvm) from 1.5.27 to 1.5.31.
- [Release notes](https://github.com/relaycorp/awala-testing-jvm/releases)
- [Changelog](https://github.com/relaycorp/awala-testing-jvm/blob/master/.releaserc.yml)
- [Commits](relaycorp/awala-testing-jvm@v1.5.27...v1.5.31)

---
updated-dependencies:
- dependency-name: tech.relaycorp:awala-testing
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

lib/build.gradle

@@ -72,7 +72,7 @@ dependencies {
   implementation 'tech.relaycorp:awala:1.68.8'
   implementation 'tech.relaycorp:awala-keystore-file:1.6.48'
   implementation 'tech.relaycorp:poweb:1.5.86'
-  testImplementation 'tech.relaycorp:awala-testing:1.5.27'
+  testImplementation 'tech.relaycorp:awala-testing:1.5.31'
 
   // Security
   implementation 'androidx.security:security-crypto:1.1.0-alpha06'