ci: upgrade actions/checkout from v2 to v4 in package.yml (#29)

Signed-off-by: yuriyryabikov <22548029+kurok@users.noreply.github.com>

Author: kurok

.github/workflows/package.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           ref: main
       - name: Install packages