Prepare for release v0.5.3

Author: francisco-perez-sorrosal

.github/workflows/doc.yml

@@ -14,7 +14,7 @@ jobs:
     if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     env:
       MDBOOK_VERSION: 0.5.1
-      MDBOOK_BIB_VERSION: 0.5.2
+      MDBOOK_BIB_VERSION: 0.5.3
     runs-on: ubuntu-latest
     steps:
       - name: Checkout