Declare variable

Author: ranbeersingh1

.github/workflows/oracle-db-deinstall.yml

@@ -88,7 +88,7 @@ jobs:
       - name: Prepare Target Name
         id: preparetargetname
         run: |
-          environment_name_$(echo ${{ github.event.inputs.TargetEnvironment }} | sed 's/delius-core-dev/delius_core_development_dev/;s/delius-core-test/delius_core_test_test/;s/delius-core-training/delius_core_test_training/;s/delius-core-stage/delius_core_preproduction_stage/;s/delius-core-pre-prod/delius_core_preproduction_pre_prod/;s/delius-core-prod/delius_core_production_prod/')
+          environment_name=environment_name_$(echo ${{ github.event.inputs.TargetEnvironment }} | sed 's/delius-core-dev/delius_core_development_dev/;s/delius-core-test/delius_core_test_test/;s/delius-core-training/delius_core_test_training/;s/delius-core-stage/delius_core_preproduction_stage/;s/delius-core-pre-prod/delius_core_preproduction_pre_prod/;s/delius-core-prod/delius_core_production_prod/')
           IFS=","
           for target in ${{ github.event.inputs.TargetHost }}
           do