ci: fix pipefail killing lint step before grep check, uncomment artifact upload

- Add '|| true' to SQFVM pipeline so pipefail doesn't kill the step
  before we can grep for [ERR] lines
- Uncomment lint log artifact upload step
- description.ext false positive filtered by grep -v

.gitea/workflows/build.yml

@@ -31,23 +31,24 @@ jobs:
           while IFS= read -r -d '' f; do
             ARGS+=(-i "$f")
           done < <(find "$SRC" -name "*.sqf" -print0)
+          # pipefail would kill this step on SQFVM's non-zero exit before we can check the log
           /tmp/sqfvm/sqfvm_linux_x64_gcc/sqfvm \
             -a --parse-only --no-execute-print \
             --input-config "$SRC/description.ext" \
-            "${ARGS[@]}" 2>&1 | tee lint_output.log
+            "${ARGS[@]}" 2>&1 | tee lint_output.log || true
           # Filter known false positive: SQFVM config parser chokes on & in author string
           if grep -v "description.ext" lint_output.log | grep -q "^\[ERR\]"; then
             echo "::error::SQFVM found syntax errors"
             exit 1
           fi
 
-      # - name: Upload lint log
+      - name: Upload lint log
-      #   if: always()
+        if: always()
-      #   uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v3
-      #   with:
+        with:
-      #     name: sqfvm-lint.log
+          name: sqfvm-lint.log
-      #     path: lint_output.log
+          path: lint_output.log
-      #     if-no-files-found: warn
+          if-no-files-found: warn
 
   pack:
     needs: [lint]