build(deps): bump hashicorp/github in /infrastructure/repository

Bumps [hashicorp/github](https://github.com/hashicorp/terraform-provider-github) from 3.1.0 to 6.0.0.
- [Changelog](https://github.com/hashicorp/terraform-provider-github/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/terraform-provider-github/commits)

---
updated-dependencies:
- dependency-name: hashicorp/github
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

infrastructure/repository/main.tf

@@ -10,7 +10,7 @@ terraform {
   required_providers {
     github = {
       source  = "hashicorp/github"
-      version = "3.1.0"
+      version = "6.0.0"
     }
   }