update setup-nim-action to v1.3

Author: Pebaz

.github/workflows/main.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - uses: jiro4989/setup-nim-action@v1.1.2
+      - uses: jiro4989/setup-nim-action@v1.3
         with:
           nim-version: '1.0.6'