Update ICSx⁵ to 2.3.1 (88)

metadata/at.bitfire.icsdroid.yml

@@ -498,7 +498,21 @@ Builds:
       - standard
     prebuild: sed -i -e '/getByName("bitfire/d' build.gradle.kts
 
+  - versionName: 2.3.1
+    versionCode: 88
+    commit: 8288eaccbaabb2e215168010b73c8a180cd4e5a0
+    subdir: app
+    submodules: true
+    sudo:
+      - echo "deb https://deb.debian.org/debian trixie main" > /etc/apt/sources.list.d/trixie.list
+      - apt-get update
+      - apt-get install -y -t trixie openjdk-21-jdk-headless
+      - update-alternatives --auto java
+    gradle:
+      - standard
+    prebuild: sed -i -e '/getByName("bitfire/d' build.gradle.kts
+
 AutoUpdateMode: Version
 UpdateCheckMode: Tags ^v[0-9.]*$
-CurrentVersion: 2.3.0
-CurrentVersionCode: 87
+CurrentVersion: 2.3.1
+CurrentVersionCode: 88