deploy: enable CSI ephemeral inline volume testing

At least one line volume must be defined, otherwise the tests
get skipped.

Author: pohly

deploy/kubernetes-1.18/test-driver.yaml

@@ -20,3 +20,5 @@ DriverInfo:
     singleNodeVolume: true
     snapshotDataSource: true
     topology: true
+InlineVolumes:
+- shared: true

deploy/kubernetes-1.20/test-driver.yaml

@@ -20,3 +20,5 @@ DriverInfo:
     singleNodeVolume: true
     snapshotDataSource: true
     topology: true
+InlineVolumes:
+- shared: true

deploy/kubernetes-distributed/test-driver.yaml

@@ -16,3 +16,5 @@ DriverInfo:
     persistence: true
     singleNodeVolume: true
     topology: true
+InlineVolumes:
+- shared: true