docs: Update wich to which (#4133)

# Purpose
When reading the documentation around
`input_enable_workflow_job_events_queue` I noticed a typo and this PR
fixes it.

# Issue
https://github.com/philips-labs/terraform-aws-github-runner/issues/4134

Co-authored-by: Stuart Pearson <[email protected]>

Author: zmariscal

Diff for: modules/multi-runner/README.md

@@ -131,7 +131,7 @@ module "multi-runner" {
 | <a name="input_enable_ami_housekeeper"></a> [enable\_ami\_housekeeper](#input\_enable\_ami\_housekeeper) | Option to disable the lambda to clean up old AMIs. | `bool` | `false` | no |
 | <a name="input_enable_managed_runner_security_group"></a> [enable\_managed\_runner\_security\_group](#input\_enable\_managed\_runner\_security\_group) | Enabling the default managed security group creation. Unmanaged security groups can be specified via `runner_additional_security_group_ids`. | `bool` | `true` | no |
 | <a name="input_enable_metrics_control_plane"></a> [enable\_metrics\_control\_plane](#input\_enable\_metrics\_control\_plane) | (Experimental) Enable or disable the metrics for the module. Feature can change or renamed without a major release. | `bool` | `false` | no |
-| <a name="input_enable_workflow_job_events_queue"></a> [enable\_workflow\_job\_events\_queue](#input\_enable\_workflow\_job\_events\_queue) | Enabling this experimental feature will create a secondory sqs queue to wich a copy of the workflow\_job event will be delivered. | `bool` | `false` | no |
+| <a name="input_enable_workflow_job_events_queue"></a> [enable\_workflow\_job\_events\_queue](#input\_enable\_workflow\_job\_events\_queue) | Enabling this experimental feature will create a secondory sqs queue to which a copy of the workflow\_job event will be delivered. | `bool` | `false` | no |
 | <a name="input_ghes_ssl_verify"></a> [ghes\_ssl\_verify](#input\_ghes\_ssl\_verify) | GitHub Enterprise SSL verification. Set to 'false' when custom certificate (chains) is used for GitHub Enterprise Server (insecure). | `bool` | `true` | no |
 | <a name="input_ghes_url"></a> [ghes\_url](#input\_ghes\_url) | GitHub Enterprise Server URL. Example: https://github.internal.co - DO NOT SET IF USING PUBLIC GITHUB | `string` | `null` | no |
 | <a name="input_github_app"></a> [github\_app](#input\_github\_app) | GitHub app parameters, see your github app. Ensure the key is the base64-encoded `.pem` file (the output of `base64 app.private-key.pem`, not the content of `private-key.pem`). | <pre>object({<br>    key_base64     = string<br>    id             = string<br>    webhook_secret = string<br>  })</pre> | n/a | yes |

Diff for: modules/multi-runner/variables.tf

@@ -551,7 +551,7 @@ variable "pool_lambda_reserved_concurrent_executions" {
 }
 
 variable "enable_workflow_job_events_queue" {
-  description = "Enabling this experimental feature will create a secondory sqs queue to wich a copy of the workflow_job event will be delivered."
+  description = "Enabling this experimental feature will create a secondory sqs queue to which a copy of the workflow_job event will be delivered."
   type        = bool
   default     = false
 }