Bump version to 7.31.1

Fixes #13889

README.md

@@ -23,7 +23,7 @@ If you're interested in a life of peace and tranquility, stick with the standard
 
 ## Contributing Code
 
-If you're new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix (check the "easy" label in our issues) in order to get yourself familiar. Also please have a look at the [CONTRIBUTING.md](https://github.com/signalapp/Signal-Android/blob/main/CONTRIBUTING.md), that might answer some of your questions.
+If you're new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix in order to get yourself familiar. Also please have a look at the [CONTRIBUTING.md](https://github.com/signalapp/Signal-Android/blob/main/CONTRIBUTING.md), that might answer some of your questions.
 
 For larger changes and feature ideas, we ask that you propose it on the [unofficial Community Forum](https://community.signalusers.org) for a high-level discussion with the wider community before implementation.
 

app/build.gradle.kts

@@ -20,8 +20,8 @@ plugins {
 
 apply(from = "static-ips.gradle.kts")
 
-val canonicalVersionCode = 1497
-val canonicalVersionName = "7.29.0"
+val canonicalVersionCode = 1506
+val canonicalVersionName = "7.31.1"
 val currentHotfixVersion = 0
 val maxHotfixVersions = 100
 
@@ -605,7 +605,6 @@ dependencies {
     }
   }
   testImplementation(testLibs.conscrypt.openjdk.uber)
-  testImplementation(testLibs.hamcrest.hamcrest)
   testImplementation(testLibs.mockk)
   testImplementation(testFixtures(project(":libsignal-service")))
   testImplementation(testLibs.espresso.core)
@@ -615,6 +614,7 @@ dependencies {
   androidTestImplementation(testLibs.androidx.test.core)
   androidTestImplementation(testLibs.androidx.test.core.ktx)
   androidTestImplementation(testLibs.androidx.test.ext.junit.ktx)
+  androidTestImplementation(testLibs.assertk)
   androidTestImplementation(testLibs.mockk.android)
   androidTestImplementation(testLibs.square.okhttp.mockserver)
   androidTestImplementation(testLibs.diff.utils)

app/proguard/proguard-automation.pro

@@ -6,7 +6,6 @@
 -dontwarn sun.reflect.**
 -dontwarn sun.misc.**
 -dontwarn assertk.**
--dontwarn org.hamcrest.**
 -dontwarn com.squareup.**
 
 -dontobfuscate