fix: change plugin-ci.yaml runs-on to ubuntu-latest (#195)

Co-authored-by: Gandalf the Greybeard <pe_gandalf@noreply.git.farh.net>
Co-committed-by: Gandalf the Greybeard <pe_gandalf@noreply.git.farh.net>

.github/workflows/detect-pr-pipeline.yaml

@@ -11,40 +11,48 @@ permissions:
 
 jobs:
   test-detection-logic:
-    runs-on: runners-privilegedescalation
+    runs-on: ubuntu-latest
     timeout-minutes: 2
+
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        run: |
+          git clone --depth=1 "https://x-access-token:${{ secrets.GITEA_TOKEN }}@git.farh.net/${{ github.repository }}.git" .
+          git fetch origin "${{ github.base_ref }}" --depth=1
+          git fetch origin "${{ github.head_ref }}" --depth=1
+          git checkout "${{ github.sha }}"
 
       - name: Run detection tests
         run: bash scripts/test-detect-pipeline.sh
 
   detect-pipeline:
-    runs-on: runners-privilegedescalation
+    runs-on: ubuntu-latest
     timeout-minutes: 5
+
     outputs:
       pipeline-type: ${{ steps.detect.outputs.pipeline-type }}
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          fetch-depth: 0
+        run: |
+          git clone --depth=1 "https://x-access-token:${{ secrets.GITEA_TOKEN }}@git.farh.net/${{ github.repository }}.git" .
+          git fetch origin "${{ github.base_ref }}" --depth=1
+          git fetch origin "${{ github.head_ref }}" --depth=1
+          git checkout "${{ github.sha }}"
 
       - name: Get changed files
-        id: changed-files
-        uses: tj-actions/changed-files@v47
-        with:
-          files_separator: '\n'
+        run: |
+          mkdir -p /tmp/pr-detect
+          git fetch origin "${{ github.base_ref }}" --depth=1 2>/dev/null
+          git fetch origin "${{ github.head_ref }}" --depth=1 2>/dev/null
+          git diff --name-only "origin/${{ github.base_ref }}" "${{ github.head_ref }}" > /tmp/pr-detect/changed_files.txt
+          echo "Files found: $(wc -l < /tmp/pr-detect/changed_files.txt)"
+          cat /tmp/pr-detect/changed_files.txt
 
       - name: Detect pipeline type
         id: detect
         run: |
-          echo "Changed files:"
-          echo "${{ steps.changed-files.outputs.all_changed_files }}"
-
-          pipeline=$(echo "${{ steps.changed-files.outputs.all_changed_files }}" | bash scripts/detect-pipeline.sh)
+          pipeline=$(bash scripts/detect-pipeline.sh < /tmp/pr-detect/changed_files.txt)
 
           echo "pipeline-type=$pipeline" >> $GITHUB_OUTPUT
           echo "Detected pipeline: $pipeline"