Test: Verify the Scala builds on a more specific agent

Motivation
----------
The `sqkqe` label includes agents that do not have
the tools required for protobuf compilation.

Change-Id: Ib469749aead16ffabf2e07cc7ceaeeca89ac6524
Reviewed-on: https://review.couchbase.org/c/couchbase-jvm-clients/+/235528
Reviewed-by: David Nault <[email protected]>
Tested-by: David Nault <[email protected]>

Author: dnault

Jenkinsfile

@@ -106,14 +106,14 @@ pipeline {
 
     stages {
         stage('Build Scala 2.13 (OpenJDK 17)') {
-            agent { label "sdkqe" }
+            agent { label "qe-ubuntu24-amd64" }
             steps {
                 buildScala(defaultBuildJvm(), "2.13", REFSPEC)
             }
         }
 
         stage('Build Scala 3 (OpenJDK 17)') {
-            agent { label "sdkqe" }
+            agent { label "qe-ubuntu24-amd64" }
             steps {
                 buildScala(defaultBuildJvm(), "3", REFSPEC)
             }