CI: Try to pin stdlibc++-13-dev down, not -12-

Author: KitsuneRal

.github/workflows/ci.yml

@@ -51,8 +51,9 @@ jobs:
       run: |
         sudo apt-get -qq update
         sudo apt-get -q install \
-            ninja-build g++$GCC_VERSION clang$CLANG_VERSION libsecret-1-dev libolm-dev \
+            ninja-build libstdc++$GCC_VERSION-dev clang$CLANG_VERSION libsecret-1-dev libolm-dev \
             qt6-base-dev qt6-base-private-dev gnome-keyring
+        sudo apt-get -q remove libstdc++-12-dev
         gnome-keyring-daemon -d --unlock <<<'' # Create a login keyring with no password
 
     - name: Install dependencies (non-Linux)