Add maintainers to django-tasks-scheduler

[cunla]

Add @cclauss and @DhavalGojiya as maintainers to django-tasks-scheduler.

[github-actions]

Terraform plan in terraform
With var files: terraform/production/org.tfvars terraform/production/repositories.tfvars
With variables: github_token = (sensitive value)

Plan: 1 to add, 1 to change, 0 to destroy.

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
+   create
!~  update in-place

Terraform will perform the following actions:

  # github_team_members.repo_committer_team_members["django-tasks-scheduler"] will be created
+   resource "github_team_members" "repo_committer_team_members" {
+       id      = (known after apply)
+       team_id = "*********************************"

+       members {
+           role     = "member"
+           username = "DhavalGojiya"
        }
+       members {
+           role     = "member"
+           username = "cclauss"
        }
    }

  # github_team_members.repo_team_members["django-tasks-scheduler"] will be updated in-place
!~  resource "github_team_members" "repo_team_members" {
        id      = "django-tasks-scheduler"
#        (1 unchanged attribute hidden)

-       members {
-           role     = "member" -> null
-           username = "devatbosch" -> null
        }
+       members {
+           role     = "member"
+           username = "DhavalGojiya"
        }
+       members {
+           role     = "member"
+           username = "cclauss"
        }

#        (1 unchanged block hidden)
    }

Plan: 1 to add, 1 to change, 0 to destroy.

📝 Plan generated in Plan org changes and list them in a PR #178