CCM-11886: Fix eventpub

Author: chris-elliott-nhsd

infrastructure/terraform/components/sandbox/README.md

@@ -28,7 +28,7 @@
 |------|--------|---------|
 | <a name="module_backend_api"></a> [backend\_api](#module\_backend\_api) | ../../modules/backend-api | n/a |
 | <a name="module_cognito_triggers"></a> [cognito\_triggers](#module\_cognito\_triggers) | ../../modules/cognito-triggers | n/a |
-| <a name="module_eventpub"></a> [eventpub](#module\_eventpub) | https://github.com/NHSDigital/nhs-notify-shared-modules/releases/download/v2.0.20/terraform-eventpub.zip | n/a |
+| <a name="module_eventpub"></a> [eventpub](#module\_eventpub) | git::https://github.com/NHSDigital/nhs-notify-shared-modules.git//infrastructure/modules/eventpub | v2.0.19 |
 ## Outputs
 
 | Name | Description |

infrastructure/terraform/components/sandbox/module_eventpub.tf

@@ -1,5 +1,5 @@
 module "eventpub" {
-  source = "https://github.com/NHSDigital/nhs-notify-shared-modules/releases/download/v2.0.20/terraform-eventpub.zip"
+  source = "git::https://github.com/NHSDigital/nhs-notify-shared-modules.git//infrastructure/modules/eventpub?ref=v2.0.19"
 
   name = "eventpub"