Fix a typo in pr-command.yaml (#4153)

Author: yutannihilation

.github/workflows/pr-commands.yaml

@@ -14,7 +14,7 @@ jobs:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
       - uses: r-lib/actions/setup-r@master
       - name: Install dependencies
-        run: Rscript -e 'install.packages(c("remotes", "roxygen2"))' -e 'remotes::install_deps(dependencies = TRUE, type = "binary"'
+        run: Rscript -e 'install.packages(c("remotes", "roxygen2"))' -e 'remotes::install_deps(dependencies = TRUE, type = "binary")'
       - name: Document
         run: Rscript -e 'roxygen2::roxygenise()'
       - name: commit