fix: force latest version of corepack

to fix problems with signature keys

Author: leon

action.yaml

@@ -14,7 +14,7 @@ runs:
   steps:
     - name: Enable NPM Corepack
       shell: bash
-      run: corepack enable
+      run: npm install -g corepack && corepack enable
 
     - name: Use node.js 20
       uses: actions/setup-node@v4