CI: replace Docker-based armake2 with direct cargo install

.gitea/workflows/build.yml

@@ -16,29 +16,20 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Install armake2
+        run: cargo install armake2
+
       - name: Pack mission folder into PBO
-        run: |
+        run: armake2 pack "$PWD" "${{ env.PBO_NAME }}"
-          docker run --rm \
-            -v "${{ github.workspace }}:/workspace" \
-            -w /workspace \
-            arwynfr/armake2:debian \
-            pack \
-            /workspace \
-            "${{ env.PBO_NAME }}"
 
       - name: Verify PBO integrity
-        run: |
+        run: armake2 inspect "${{ env.PBO_NAME }}"
-          docker run --rm \
-            -v "${{ github.workspace }}:/workspace" \
-            -w /workspace \
-            arwynfr/armake2:debian \
-            inspect "${{ env.PBO_NAME }}"
 
       - name: Upload PBO as artifact
         uses: actions/upload-artifact@v4
         with:
           name: ${{ env.PBO_NAME }}
-          path: ${{ env.PBO_NAME }}
+          path: ${{ github.workspace }}/${{ env.PBO_NAME }}
 
   deploy:
     if: false