feat: Add deployment side config-ssh options (#6613)

* feat: Allow setting deployment wide ssh config settings
* feat: config-ssh respects deployment ssh config
* The '.' is now configurable
* Move buildinfo into deployment.go

docs/api/general.md

@@ -155,6 +155,10 @@ curl -X GET http://coder-server:8080/api/v2/deployment/config \
     "browser_only": true,
     "cache_directory": "string",
     "config": "string",
+    "config_ssh": {
+      "deploymentName": "string",
+      "sshconfigOptions": ["string"]
+    },
     "dangerous": {
       "allow_path_app_sharing": true,
       "allow_path_app_site_owner_access": true
@@ -398,6 +402,41 @@ curl -X GET http://coder-server:8080/api/v2/deployment/config \
 
 To perform this operation, you must be authenticated. [Learn more](authentication.md).
 
+## SSH Config
+
+### Code samples
+
+```shell
+# Example request using curl
+curl -X GET http://coder-server:8080/api/v2/deployment/ssh \
+  -H 'Accept: application/json' \
+  -H 'Coder-Session-Token: API_KEY'
+```
+
+`GET /deployment/ssh`
+
+### Example responses
+
+> 200 Response
+
+```json
+{
+  "hostname_prefix": "string",
+  "ssh_config_options": {
+    "property1": "string",
+    "property2": "string"
+  }
+}
+```
+
+### Responses
+
+| Status | Meaning                                                 | Description | Schema                                                             |
+| ------ | ------------------------------------------------------- | ----------- | ------------------------------------------------------------------ |
+| 200    | [OK](https://tools.ietf.org/html/rfc7231#section-6.3.1) | OK          | [codersdk.SSHConfigResponse](schemas.md#codersdksshconfigresponse) |
+
+To perform this operation, you must be authenticated. [Learn more](authentication.md).
+
 ## Get deployment stats
 
 ### Code samples