fix(deps): bump poweb from 1.5.25 to 1.5.31

Bumps [poweb](https://github.com/relaycorp/awala-poweb-jvm) from 1.5.25 to 1.5.31.
- [Release notes](https://github.com/relaycorp/awala-poweb-jvm/releases)
- [Changelog](https://github.com/relaycorp/awala-poweb-jvm/blob/master/release.gradle)
- [Commits](relaycorp/awala-poweb-jvm@v1.5.25...v1.5.31)

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

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

app/build.gradle

@@ -150,7 +150,7 @@ dependencies {
     implementation 'org.conscrypt:conscrypt-android:2.5.2'
 
     // Local and Internet-based Parcel Delivery Connections (PDCs)
-    implementation 'tech.relaycorp:poweb:1.5.25'
+    implementation 'tech.relaycorp:poweb:1.5.31'
     implementation "io.ktor:ktor-server-core:$ktorVersion"
     implementation "io.ktor:ktor-server-netty:$ktorVersion"
     implementation "io.ktor:ktor-websockets:$ktorVersion"