Use build API key name as used in robotest in other scripts consistently

Jenkinsfile

@@ -61,7 +61,7 @@ timestamps {
       withCredentials([
       sshUserPrivateKey(credentialsId: '08267d86-0b3a-4101-841e-0036bf780b11', keyFileVariable: 'GITHUB_SSH_KEY'),
       usernamePassword(credentialsId: 'jenkins-aws-s3', usernameVariable: 'AWS_ACCESS_KEY_ID', passwordVariable: 'AWS_SECRET_ACCESS_KEY'),
-      string(credentialsId:'GET_GRAVITATIONAL_IO_APIKEY', variable: 'BUILD_APIKEY'),
+      string(credentialsId:'GET_GRAVITATIONAL_IO_APIKEY', variable: 'GET_GRAVITATIONAL_IO_APIKEY'),
       ]) {
         sh 'make -C e production telekube-intermediate-upgrade opscenter'
       }
@@ -81,11 +81,10 @@ timestamps {
         robotest : {
           if (env.RUN_ROBOTEST == 'run') {
             withCredentials([
-		string(credentialsId: 'GET_GRAVITATIONAL_IO_APIKEY', variable: 'GET_GRAVITATIONAL_IO_APIKEY'),
+                string(credentialsId: 'GET_GRAVITATIONAL_IO_APIKEY', variable: 'GET_GRAVITATIONAL_IO_APIKEY'),
                 file(credentialsId:'ROBOTEST_LOG_GOOGLE_APPLICATION_CREDENTIALS', variable: 'GOOGLE_APPLICATION_CREDENTIALS'),
                 file(credentialsId:'OPS_SSH_KEY', variable: 'SSH_KEY'),
                 file(credentialsId:'OPS_SSH_PUB', variable: 'SSH_PUB'),
-                string(credentialsId:'GET_GRAVITATIONAL_IO_APIKEY', variable: 'BUILD_APIKEY'),
                 ]) {
                   sh 'make -C e robotest-run-suite'
             }

build.assets/robotest/run.sh

@@ -49,10 +49,10 @@ tele=$GRAVITY_BUILDDIR/tele
 mkdir -p $UPGRADE_FROM_DIR
 for release in ${!UPGRADE_MAP[@]}; do
   $tele pull telekube:$release \
-	--output=$UPGRADE_FROM_DIR/telekube_$release.tar \
-	--state-dir $GRAVITY_BUILDDIR/.robotest \
-	--hub=https://get.gravitational.io:443 \
-	--token="$GET_GRAVITATIONAL_IO_APIKEY"
+  --output=$UPGRADE_FROM_DIR/telekube_$release.tar \
+  --state-dir $GRAVITY_BUILDDIR/.robotest \
+  --hub=https://get.gravitational.io:443 \
+  --token="$GET_GRAVITATIONAL_IO_APIKEY"
 done
 
 docker pull $ROBOTEST_REPO