fix(gha): remove forced tag checkout in ci script

fails on checking out tag

Author: bitbeckers

.github/workflows/ci-default.yml

@@ -44,9 +44,6 @@ jobs:
           git submodule update --init --recursive --force
           git submodule foreach git fetch --all
           git submodule foreach git reset --hard origin/HEAD
-          cd lib/openzeppelin-contracts-upgradeable
-          git checkout v4.9.6
-          cd ../..
 
       - name: Debug submodules
         run: |