use hosted runners for nightly actions (#27485) (#27488)

Backport #27485 by @techknowlogick

I'm temporarily unable to properly evaluate actuated runners, and so I'm
switching back to hosted runners until I am able to focus on that again.

---------

Co-authored-by: techknowlogick <techknowlogick@gitea.com>
Co-authored-by: silverwind <me@silverwind.io>

.github/actionlint.yaml

@@ -2,3 +2,4 @@ self-hosted-runner:
   labels:
     - actuated-4cpu-8gb
     - actuated-4cpu-16gb
+    - nscloud

.github/workflows/disk-clean.yml

@@ -0,0 +1,36 @@
+name: disk-clean
+
+on:
+  workflow_call:
+
+jobs:
+  triage:
+    runs-on: ubuntu-latest
+    steps:
+      # FIXME: https://github.com/jlumbroso/free-disk-space/issues/17
+      - name: same as 'large-packages' but without 'google-cloud-sdk'
+        shell: bash
+        run: |
+          sudo apt-get remove -y '^dotnet-.*'
+          sudo apt-get remove -y '^llvm-.*'
+          sudo apt-get remove -y 'php.*'
+          sudo apt-get remove -y '^mongodb-.*'
+          sudo apt-get remove -y '^mysql-.*'
+          sudo apt-get remove -y azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri
+          sudo apt-get autoremove -y
+          sudo apt-get clean
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          # this might remove tools that are actually needed,
+          # if set to "true" but frees about 6 GB
+          tool-cache: false
+
+          # all of these default to true, but feel free to set to
+          # "false" if necessary for your workflow
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: false
+          docker-images: false
+          swap-storage: true

.github/workflows/release-nightly.yml

@@ -10,7 +10,7 @@ concurrency:
 
 jobs:
   nightly-binary:
-    runs-on: actuated-4cpu-16gb
+    runs-on: nscloud
     steps:
       - uses: actions/checkout@v4
       # fetch all commits instead of only the last as some branches are long lived and could have many between versions
@@ -56,7 +56,7 @@ jobs:
         run: |
           aws s3 sync dist/release s3://${{ secrets.AWS_S3_BUCKET }}/gitea/${{ steps.clean_name.outputs.branch }} --no-progress
   nightly-docker-rootful:
-    runs-on: actuated-4cpu-16gb
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       # fetch all commits instead of only the last as some branches are long lived and could have many between versions
@@ -93,7 +93,7 @@ jobs:
           push: true
           tags: gitea/gitea:${{ steps.clean_name.outputs.branch }}
   nightly-docker-rootless:
-    runs-on: actuated-4cpu-16gb
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       # fetch all commits instead of only the last as some branches are long lived and could have many between versions