Fix Typos!

Why these changes are being introduced:
I missed three typos, one in a comment and two in the special Tf
outputs for stage & prod.

How this addresses that need:
* Fix this mistaken capital letter in a comment in the providers.tf file
* Fix the stage-only output to pull from the correct "extra-region"
template file instead of the regular template file for the "west"
region workflow lines
* Fix the prod-only output to pull from the correct "extra-region"
template file intead of the regular template file for the "west" region
workflow lines

Side effects of this change:
None. Only changes outputs.

Relevant ticket(s):
* https://mitlibraries.atlassian.net/browse/IR-238

Author: cabutlermit

cdps_ecrs_west.tf

@@ -43,7 +43,7 @@ output "s3_bagit_validator_makefile_west" {
 
 # Outputs in stage
 output "s3_bagit_validator_stage_build_workflow_west" {
-  value = var.environment == "prod" || var.environment == "dev" ? null : templatefile("${path.module}/files/stage-build.tpl", {
+  value = var.environment == "prod" || var.environment == "dev" ? null : templatefile("${path.module}/files/stage-build-extra-region.tpl", {
     region   = "us-west-2"
     role     = module.ecr_cdps_s3_bagit_validator.gha_role
     ecr      = module.ecr_cdps_s3_bagit_validator_west.repository_name
@@ -55,7 +55,7 @@ output "s3_bagit_validator_stage_build_workflow_west" {
 
 # Outputs after promotion to prod
 output "s3_bagit_validator_prod_promote_workflow_west" {
-  value = var.environment == "stage" || var.environment == "dev" ? null : templatefile("${path.module}/files/prod-promote.tpl", {
+  value = var.environment == "stage" || var.environment == "dev" ? null : templatefile("${path.module}/files/prod-promote-extra-region.tpl", {
     region     = "us-west-2"
     role_stage = "${module.ecr_cdps_s3_bagit_validator_west.repo_name}-gha-stage"
     role_prod  = "${module.ecr_cdps_s3_bagit_validator_west.repo_name}-gha-prod"

providers.tf

@@ -25,7 +25,7 @@ provider "aws" {
   }
 }
 
-# NEed additional region for multi-region containers
+# Need additional region for multi-region containers
 provider "aws" {
   alias  = "west-2"
   region = "us-west-2"