Bump r-lib/actions from 1 to 2 (#56)

Author: dependabot[bot]

.github/workflows/main.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - uses: r-lib/actions/setup-tinytex@v1
+      - uses: r-lib/actions/setup-tinytex@v2
         if: runner.os != 'Windows'
       - uses: conda-incubator/setup-miniconda@v2
         with: