Update build.yaml

Use chktex to lint instead of the heavier build operation.

Author: mrtz-j

.github/workflows/build.yaml

@@ -14,10 +14,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           fetch-depth: '0'
-      - name: Compile LaTeX document
-        uses: xu-cheng/latex-action@v3
-        with:
-          root_file: src/template.tex
-          texlive_version: 2023
-          latexmk_shell_escape: true
-          args: -pdf -interaction=nonstopmode -output-directory=.build -f
+      - name: LaTeX linter (chktex)
+        uses: j2kun/chktex-action@main
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}