public SELF withVaultToken(String token) {
        withEnv("VAULT_DEV_ROOT_TOKEN_ID", token);
        withEnv("VAULT_TOKEN", token);
        return self();
    }
Sets the Vault root token for the container so application tests can source secrets using the token

@param token the root token value to set for Vault.
@return this
modules/vault/src/main/java/org/testcontainers/vault/VaultContainer.java