ci: lowercase workflow name

[xnoto]

Renames the workflow's top-level name: from OpenTofu to opentofu so the Actions pane uses lowercase, coder-friendly naming.

🤖 Generated with Claude Code

[github-actions]

OpenTofu Plan

OpenTofu will perform the following actions:

  # module.k3s.libvirt_cloudinit_disk.commoninit will be created
  + resource "libvirt_cloudinit_disk" "commoninit" {
      + id             = (known after apply)
      + meta_data      = <<-EOT
            instance-id: k3s
            local-hostname: k3s
        EOT
      + name           = "k3s_commoninit"
      + network_config = <<-EOT
            version: 2
            ethernets:
              enp1s0:
                dhcp4: true
              enp2s0:
                dhcp4: false
                addresses:
                  - 192.168.102.2/24
        EOT
      + path           = (known after apply)
      + size           = (known after apply)
      + user_data      = (sensitive value)
    }

  # module.k3s.libvirt_volume.cloudinit is tainted, so it must be replaced
-/+ resource "libvirt_volume" "cloudinit" {
      ~ allocation = 49152 -> (known after apply)
      ~ capacity   = 47104 -> (known after apply)
      ~ create     = {
          ~ content = {
              ~ url = "/Users/hatch/.claude/plugins/cache/context-mode/context-mode/1.0.15/terraform-provider-libvirt-cloudinit/cloudinit-bfb5c6617dbb44ba.iso" -> (known after apply)
            }
        }
      ~ id         = "/mnt/nvme/cluster/k3s_cloudinit.iso" -> (known after apply)
      ~ key        = "/mnt/nvme/cluster/k3s_cloudinit.iso" -> (known after apply)
        name       = "k3s_cloudinit.iso"
      ~ path       = "/mnt/nvme/cluster/k3s_cloudinit.iso" -> (known after apply)
      ~ physical   = 47104 -> (known after apply)
        # (1 unchanged attribute hidden)
    }

  # module.runner.libvirt_cloudinit_disk.commoninit will be created
  + resource "libvirt_cloudinit_disk" "commoninit" {
      + id             = (known after apply)
      + meta_data      = <<-EOT
            instance-id: runner
            local-hostname: runner
        EOT
      + name           = "runner_commoninit"
      + network_config = (sensitive value)
      + path           = (known after apply)
      + size           = (known after apply)
      + user_data      = (sensitive value)
    }

  # module.runner.libvirt_volume.cloudinit is tainted, so it must be replaced
-/+ resource "libvirt_volume" "cloudinit" {
      ~ allocation = 49152 -> (known after apply)
      ~ capacity   = 47104 -> (known after apply)
      ~ create     = {
          ~ content = {
              ~ url = "/Users/hatch/.claude/plugins/cache/context-mode/context-mode/1.0.15/terraform-provider-libvirt-cloudinit/cloudinit-b063448360566560.iso" -> (known after apply)
            }
        }
      ~ id         = "/var/lib/libvirt/images/runner_cloudinit.iso" -> (known after apply)
      ~ key        = "/var/lib/libvirt/images/runner_cloudinit.iso" -> (known after apply)
        name       = "runner_cloudinit.iso"
      ~ path       = "/var/lib/libvirt/images/runner_cloudinit.iso" -> (known after apply)
      ~ physical   = 47104 -> (known after apply)
        # (1 unchanged attribute hidden)
    }

Plan: 4 to add, 0 to change, 2 to destroy.