ci: Properly install sbt

.github/workflows/test.yml

@@ -23,6 +23,14 @@ jobs:
         distribution: 'temurin'
         cache: 'sbt'
     - name: Install sbt
-      run: sudo apt install -y sbt
+      run: >
+        sudo apt-get update
+        sudo apt-get install apt-transport-https curl gnupg -yqq
+        echo "deb https://repo.scala-sbt.org/scalasbt/debian all main" | sudo tee /etc/apt/sources.list.d/sbt.list
+        echo "deb https://repo.scala-sbt.org/scalasbt/debian /" | sudo tee /etc/apt/sources.list.d/sbt_old.list
+        curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | sudo -H gpg --no-default-keyring --keyring gnupg-ring:/etc/apt/trusted.gpg.d/scalasbt-release.gpg --import
+        sudo chmod 644 /etc/apt/trusted.gpg.d/scalasbt-release.gpg
+        sudo apt-get update
+        sudo apt-get install sbt
     - name: Run tests
       run: sbt test