fix: update HCP vault links to use current URL patterns (#275)

Realized this was an issue while fixing how we're rendering GFM alerts
on the Registry website.

## Description

Basically, the URLs we're using right now are technically valid, but
they were using the old URL pattern from before we created the
`coder/registry` repo. The Registry website has logic to handle
redirects for these, but we should avoid triggering it as it adds
unnecessary entries to the user's browser history.

### Changes made
- Updated all Registry links in the HCP Vault alert to include `coder`
as the namespace

## Type of Change

- [ ] New module
- [ ] Bug fix
- [ ] Feature/enhancement
- [x] Documentation
- [ ] Other

## Testing & Validation

- [x] Tests pass (`bun test`)
- [x] Code formatted (`bun run fmt`)
- [x] Changes tested locally

Author: buenos-nachos

registry/coder/modules/hcp-vault-secrets/README.md

@@ -15,9 +15,9 @@ tags: [integration, vault, hashicorp, hvs]
 >
 > **Use these Coder registry modules instead:**
 >
-> - **[vault-token](https://registry.coder.com/modules/vault-token)** - Connect to Vault using access tokens
-> - **[vault-jwt](https://registry.coder.com/modules/vault-jwt)** - Connect to Vault using JWT/OIDC authentication
-> - **[vault-github](https://registry.coder.com/modules/vault-github)** - Connect to Vault using GitHub authentication
+> - **[vault-token](https://registry.coder.com/modules/coder/vault-token)** - Connect to Vault using access tokens
+> - **[vault-jwt](https://registry.coder.com/modules/coder/vault-jwt)** - Connect to Vault using JWT/OIDC authentication
+> - **[vault-github](https://registry.coder.com/modules/coder/vault-github)** - Connect to Vault using GitHub authentication
 >
 > These modules work with both self-hosted Vault and HCP Vault Dedicated. For migration help, see the [official HashiCorp announcement](https://developer.hashicorp.com/hcp/docs/vault-secrets/end-of-sale-announcement).
 
@@ -26,7 +26,7 @@ This module lets you fetch all or selective secrets from a [HCP Vault Secrets](h
 ```tf
 module "vault" {
   source     = "registry.coder.com/coder/hcp-vault-secrets/coder"
-  version    = "1.0.33"
+  version    = "1.0.34"
   agent_id   = coder_agent.example.id
   app_name   = "demo-app"
   project_id = "aaa-bbb-ccc"
@@ -52,7 +52,7 @@ To fetch all secrets from the HCP Vault Secrets app, skip the `secrets` input.
 ```tf
 module "vault" {
   source     = "registry.coder.com/coder/hcp-vault-secrets/coder"
-  version    = "1.0.33"
+  version    = "1.0.34"
   agent_id   = coder_agent.example.id
   app_name   = "demo-app"
   project_id = "aaa-bbb-ccc"
@@ -66,7 +66,7 @@ To fetch selective secrets from the HCP Vault Secrets app, set the `secrets` inp
 ```tf
 module "vault" {
   source     = "registry.coder.com/coder/hcp-vault-secrets/coder"
-  version    = "1.0.33"
+  version    = "1.0.34"
   agent_id   = coder_agent.example.id
   app_name   = "demo-app"
   project_id = "aaa-bbb-ccc"
@@ -81,7 +81,7 @@ Set `client_id` and `client_secret` as module inputs.
 ```tf
 module "vault" {
   source        = "registry.coder.com/coder/hcp-vault-secrets/coder"
-  version       = "1.0.33"
+  version       = "1.0.34"
   agent_id      = coder_agent.example.id
   app_name      = "demo-app"
   project_id    = "aaa-bbb-ccc"