CI: further fixes

Author: glpatcern

.github/workflows/rfc.yml

@@ -24,10 +24,11 @@ jobs:
       - name: Convert Markdown to XML and save output
         id: convert
         run: |
-          kramdown-rfc IETF-RFC.md > IETF-RFC.xml 2> /tmp/result \
-            echo "result<<EOF" >> $GITHUB_OUTPUT \
-            cat /tmp/result >> $GITHUB_OUTPUT \
-            echo "EOF" >> $GITHUB_OUTPUT
+          kramdown-rfc IETF-RFC.md > IETF-RFC.xml 2> /tmp/result || true
+          cat /tmp/result
+          echo "result<<EOF" >> $GITHUB_OUTPUT
+          echo "$(cat /tmp/result)" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
 
       - uses: actions/upload-artifact@v4
         with: