bats tests were failing due to uppercase release name

[avoidik]

Describe the bug
I wasn't able to complete bats test with make test-bats

To Reproduce
Steps to reproduce the behavior:

1. Clone repo
2. Run make test

ok 458 server/standalone-StatefulSet: serviceAccount.name is set
not ok 459 server/standalone-StatefulSet: serviceAccount.name is not set
# (in test file /helm-test/test/unit/server-statefulset.bats, line 1643)
#   `[ "${actual}" = "RELEASE-NAME-vault" ]' failed
# release-name-vault
# /templates/server-statefulset.yaml
# # StatefulSet to run the actual vault server cluster.
# apiVersion: apps/v1
# kind: StatefulSet
# metadata:
#   name: release-name-vault

Expected behavior
Successfully completed tests

Environment

• Kubernetes version: N/A
  • Distribution or cloud vendor (OpenShift, EKS, GKE, AKS, etc.): N/A
  • Other configuration options or runtime services (istio, etc.): N/A
• vault-helm version: main

Chart values: N/A

Additional context
Clean environment

[avoidik]

#693