Update snapshot.yml

Author: j5ik2o

.github/workflows/snapshot.yml

@@ -32,5 +32,3 @@ jobs:
         PGP_SECRET: ${{ secrets.PGP_SECRET }}
         SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
         SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
-    - name: clean up
-      run: "${GITHUB_WORKSPACE}/.github/clean-up.sh"