Use full gpg-key ID (closes #21)

Based on http://www.scala-sbt.org/0.13/docs/Installing-sbt-on-Linux.html.

See also:

• https://gitlab.com/gitlab-org/gitlab-ce/issues/24402
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=836551

Closes #21 (closed).

Scala.gitlab-ci.yml

@@ -9,7 +9,7 @@ before_script:
   - apt-get install apt-transport-https -yqq
   # Add keyserver for SBT
   - echo "deb http://dl.bintray.com/sbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list
-  - apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 642AC823
+  - apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
   # Install SBT
   - apt-get update -yqq
   - apt-get install sbt -yqq