chore(deps): update yegor256/latexmk-action action to v0.20.0

Author: renovate[bot]

.github/workflows/latexmk.yml

@@ -32,7 +32,7 @@ jobs:
       - uses: actions/checkout@v4
       - run: sudo apt-get install -y python3-pygments && sudo pip3 install pygments
       - run: sudo apt-get -y install ghostscript
-      - uses: yegor256/latexmk-action@0.16.1
+      - uses: yegor256/latexmk-action@0.20.0
         with:
           path: sr-paper
           opts: -pdf