ci: remove forced corepack installation

Author: danielroe

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: [danielroe]

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
-      - run: npm i -g --force corepack && corepack enable
+      - run: corepack enable
       - uses: actions/setup-node@v4
         with:
           node-version: 18