Added 20.9 reference file directory for new release in testing (ATLASSIM-3607)

No change to executables. Tested in lcplus.


Former-commit-id: 93eaa533

Simulation/Tests/DigitizationTests/scripts/DigitizationCheckReferenceLocation.sh

-#!/bin/sh 
+#!/bin/sh
 
 export DigitizationTestsVersion="dev"
 if [[ $ATLAS_RELEASE_BASE == *"20.7.X.Y-VAL"* ]]; then
     DigitizationTestsVersion="20.7.X.Y-VAL"
 elif [[ $ATLAS_RELEASE_BASE == *"20.7"* ]]; then
     DigitizationTestsVersion="20.7.X"
+elif [[ $ATLAS_RELEASE_BASE == *"20.9"* ]]; then
+    DigitizationTestsVersion="20.9"
 elif [[ $ATLAS_RELEASE_BASE == *"20.20"* ]]; then
     DigitizationTestsVersion="20.20.X"
 elif [[ $ATLAS_RELEASE_BASE == *"mig7"* ]]; then
@@ -16,5 +18,3 @@ elif [[ $ATLAS_RELEASE_BASE == *"20.1"* ]]; then
 elif [[ $ATLAS_RELEASE_BASE == *"21.0"* ]]; then
     DigitizationTestsVersion="21.0.X"
 fi
-
-