Synchronize language-reference-stable with Scala 3.6.3 (#22398)

Author: WojciechMazur

Diff for: .github/Dockerfile

@@ -15,7 +15,8 @@ RUN apt-get update && \
                        openjdk-17-jdk-headless \
                        openjdk-21-jdk-headless && \
     (curl -fsSL https://deb.nodesource.com/setup_18.x | bash -) && \
-    apt-get install -y nodejs
+    apt-get install -y nodejs && \
+    apt-get install -y zip unzip
 
 
 # Install sbt

Diff for: .github/dependabot.yml

@@ -8,3 +8,12 @@ updates:
       - hamzaremmal
     reviewers:
       - hamzaremmal
+  - package-ecosystem: bundler
+    directory: '/docs/_spec'
+    schedule:
+      interval: weekly
+    assignees:
+      - hamzaremmal
+    reviewers:
+      - hamzaremmal
+