fix(action): delete lock file in windows env

Author: pysan3

.github/workflows/release-binaries.yml

@@ -131,7 +131,7 @@ jobs:
           yes: true
       - name: setup and build
         run: |
-          del nimble.lock
+          rm nimble.lock
           nimble --verbose --noLockfile -y install https://github.com/pysan3/nim_pandoc
           nimble --verbose --noLockfile -y install cligen
           nimble --verbose -y build -f:on -d:release