chore: unify actions URLs in .forgejo/workflows (#993)

- make them all absolute
- use data.forgejo.org instead of code.forgejo.org

This allows renovate to propose more consistent updates.

<!--start release-notes-assistant-->
<!--URL:https://code.forgejo.org/forgejo/runner-->
- other
  - [PR](https://code.forgejo.org/forgejo/runner/pulls/993): <!--number 993 --><!--line 0 --><!--description Y2hvcmU6IHVuaWZ5IGFjdGlvbnMgVVJMcyBpbiAuZm9yZ2Vqby93b3JrZmxvd3M=-->chore: unify actions URLs in .forgejo/workflows<!--description-->
<!--end release-notes-assistant-->

Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/993
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>

.forgejo/workflows/build-release-integration.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: lxc-bookworm
     if: vars.ROLE == 'forgejo-coding'
     steps:
-      - uses: actions/checkout@v4
+      - uses:  https://data.forgejo.org/actions/checkout@v4
 
       - id: forgejo
         uses: https://data.forgejo.org/actions/setup-forgejo@v3.0.3

.forgejo/workflows/build-release.yml

@@ -23,7 +23,7 @@ jobs:
     # root is used for testing, allow it
     if: vars.ROLE == 'forgejo-integration' || forge.repository_owner == 'root'
     steps:
-      - uses: actions/checkout@v4
+      - uses: https://data.forgejo.org/actions/checkout@v4
 
       - name: Increase the verbosity when there are no secrets
         id: verbose

.forgejo/workflows/cascade-forgejo.yml

@@ -87,7 +87,7 @@ jobs:
         with:
           fetch-depth: '0'
           show-progress: 'false'
-      - uses: actions/setup-go@v5
+      - uses: https://data.forgejo.org/actions/setup-go@v5
         with:
           go-version-file: go.mod
       - uses: https://data.forgejo.org/actions/cascading-pr@v2.3.0

.forgejo/workflows/example-docker-compose.yml

@@ -15,7 +15,7 @@ jobs:
     if: vars.ROLE == 'forgejo-coding'
     runs-on: lxc-bookworm
     steps:
-      - uses: actions/checkout@v4
+      - uses: https://data.forgejo.org/actions/checkout@v4
 
       - name: Install docker
         run: |

.forgejo/workflows/test.yml

@@ -59,7 +59,7 @@ jobs:
 
       - run: make build
 
-      - uses: https://code.forgejo.org/actions/upload-artifact@v3
+      - uses: https://data.forgejo.org/actions/upload-artifact@v3
         with:
           name: forgejo-runner
           path: forgejo-runner
@@ -79,9 +79,9 @@ jobs:
     needs: [build-and-tests]
     steps:
 
-      - uses: actions/checkout@v4
+      - uses: https://data.forgejo.org/actions/checkout@v4
 
-      - uses: https://code.forgejo.org/actions/download-artifact@v3
+      - uses: https://data.forgejo.org/actions/download-artifact@v3
         with:
           name: forgejo-runner
 
@@ -156,9 +156,9 @@ jobs:
     needs: [build-and-tests]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: https://data.forgejo.org/actions/checkout@v4
 
-      - uses: actions/setup-go@v5
+      - uses: https://data.forgejo.org/actions/setup-go@v5
         with:
           go-version-file: go.mod