Harmonize var names with EMR

pkg/fleet/installer/setup/djm/databricks.go

@@ -17,9 +17,9 @@ import (
 )
 
 const (
-	databricksInjectorVersion = "0.26.0-1"
-	databricksJavaVersion     = "1.42.2-1"
-	databricksAgentVersion    = "7.58.2-1"
+	databricksInjectorVersion   = "0.26.0-1"
+	databricksJavaTracerVersion = "1.42.2-1"
+	databricksAgentVersion      = "7.58.2-1"
 )
 
 var (
@@ -65,7 +65,7 @@ var (
 			Service: "databricks",
 		},
 	}
-	tracerEnvConfig = []common.InjectTracerConfigEnvVar{
+	tracerEnvConfigDatabricks = []common.InjectTracerConfigEnvVar{
 		{
 			Key:   "DD_DATA_JOBS_ENABLED",
 			Value: "true",
@@ -81,7 +81,7 @@ var (
 func SetupDatabricks(s *common.Setup) error {
 	s.Packages.Install(common.DatadogAgentPackage, databricksAgentVersion)
 	s.Packages.Install(common.DatadogAPMInjectPackage, databricksInjectorVersion)
-	s.Packages.Install(common.DatadogAPMLibraryJavaPackage, databricksJavaVersion)
+	s.Packages.Install(common.DatadogAPMLibraryJavaPackage, databricksJavaTracerVersion)
 
 	hostname, err := os.Hostname()
 	if err != nil {
@@ -172,7 +172,7 @@ func setupDatabricksDriver(s *common.Setup) {
 	s.Span.SetTag("spark_node", "driver")
 
 	s.Config.DatadogYAML.Tags = append(s.Config.DatadogYAML.Tags, "node_type:driver")
-	s.Config.InjectTracerYAML.AdditionalEnvironmentVariables = tracerEnvConfig
+	s.Config.InjectTracerYAML.AdditionalEnvironmentVariables = tracerEnvConfigDatabricks
 
 	var sparkIntegration common.IntegrationConfig
 	if os.Getenv("DRIVER_LOGS_ENABLED") == "true" {