feat: add pre-commit check in ci

- add a ci workflow to verify pre-commit passes
- fix pre-commit errors/warnings:
  - missing required_version
  - missing required_providers
  - fixed terraform_deprecated_interpolation
  - removed terraform_unused_declarations

modules/vault_cluster/main.tf

@@ -265,7 +265,6 @@ module "consul_secret_backend_role" {
 
   name    = each.value.name
   backend = each.value.backend
-  consul_roles = each.value.consul_roles
   ttl     = each.value.ttl
   max_ttl = each.value.max_ttl
   local   = each.value.local
@@ -321,7 +320,6 @@ module "pki_mount_only" {
   path                          = each.key
   description                   = each.value.description
   max_lease_ttl_seconds         = each.value.max_lease_ttl_seconds
-  issuer_ref                    = each.value.issuer_ref
   issuing_certificates          = each.value.issuing_certificates
   crl_distribution_points       = each.value.crl_distribution_points
   ocsp_servers                  = each.value.ocsp_servers

modules/vault_cluster/modules/consul_secret_backend_role/variables.tf

@@ -9,12 +9,6 @@ variable "name" {
 }
 
 
-variable "consul_roles" {
-  description = "List of Consul roles to attach to tokens"
-  type        = list(string)
-  default     = []
-}
-
 
 variable "ttl" {
   description = "TTL for generated tokens"

modules/vault_cluster/modules/pki_mount_only/variables.tf

@@ -13,11 +13,6 @@ variable "max_lease_ttl_seconds" {
   type        = number
 }
 
-variable "issuer_ref" {
-  description = "Reference to the PKI issuer (default, or issuer ID/name)"
-  type        = string
-  default     = "default"
-}
 
 variable "issuing_certificates" {
   description = "List of URLs for issuing certificates"

modules/vault_cluster/variables.tf

@@ -203,7 +203,6 @@ variable "pki_mount_only" {
   type = map(object({
     description                   = optional(string)
     max_lease_ttl_seconds         = optional(number, 315360000)
-    issuer_ref                    = optional(string, "default")
     issuing_certificates          = optional(list(string), [])
     crl_distribution_points       = optional(list(string), [])
     ocsp_servers                  = optional(list(string), [])