Update element-call-android to 0.1.0-rc.8 and the Rust SDK to 26.10.15

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

features/roomcall/impl/src/main/kotlin/io/element/android/features/roomcall/impl/RoomCallStatePresenter.kt

@@ -61,7 +61,6 @@ class RoomCallStatePresenter(
                         isAudioCall = roomInfo.activeCallIntentConsensus.isAudio(),
                     )
                     else -> {
-                        // Joined, not active: an invited member cannot be rung (feature-hq 030 R36).
                         val isEmptyDm = roomInfo.isDm && roomInfo.joinedMembersCount <= 1
                         RoomCallState.StandBy(
                             canStartCall = canJoinCall && !isEmptyDm,

gradle/libs.versions.toml

@@ -64,7 +64,7 @@ ktlint = "1.8.0"
 androidx-test-ext-junit = "1.3.0"
 kover = "0.9.11"
 # The native MatrixRTC call component, https://github.com/element-hq/element-call-android
-element_call = "0.1.0-rc.7"
+element_call = "0.1.0-rc.8"
 
 [libraries]
 # Project
@@ -186,7 +186,7 @@ test_detekt_test = { module = "io.gitlab.arturbosch.detekt:detekt-test", version
 # it as a plain `require`: without this, a library built against a newer SDK would silently drag this app
 # onto it. With it, this pin always wins, and a library that needs something newer fails at configuration
 # time naming both versions instead of at runtime with NoSuchMethodError.
-matrix_sdk = { module = "org.matrix.rustcomponents:sdk-android", version = { strictly = "26.10.14-nightly" } }
+matrix_sdk = { module = "org.matrix.rustcomponents:sdk-android", version = { strictly = "26.10.15" } }
 rustls_platform_verifier = "org.rustls:rustls-platform-verifier:0.2.0"
 
 # Others