refactor(ci): drop registry-url, rely on project .npmrc for auth

Uses the new setup-vp behavior from voidzero-dev/setup-vp#54: when
NODE_AUTH_TOKEN is set, the action auto-generates a matching _authToken
entry for each registry declared in the repo .npmrc. The repo .npmrc
stays minimal (scope -> registry only) and no registry-url is needed
in the workflow.

Pinned to commit af4ffd9 on the PR branch until the change is released
under @v1.

Author: fengmk2

.github/workflows/ci.yml

@@ -14,10 +14,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: voidzero-dev/setup-vp@v1
+      - uses: voidzero-dev/setup-vp@af4ffd95e8c3d93e048fe8f03afeb2d4e3eba927 # PR #54
         with:
           cache: true
-          registry-url: https://npm.pkg.github.com
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NODE_AUTH_TOKEN }}
       - run: vp check
@@ -30,10 +29,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: voidzero-dev/setup-vp@v1
+      - uses: voidzero-dev/setup-vp@af4ffd95e8c3d93e048fe8f03afeb2d4e3eba927 # PR #54
         with:
           cache: true
-          registry-url: https://npm.pkg.github.com
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NODE_AUTH_TOKEN }}
       - run: vpx void deploy

.github/workflows/deploy.yml

@@ -9,10 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: voidzero-dev/setup-vp@v1
+      - uses: voidzero-dev/setup-vp@af4ffd95e8c3d93e048fe8f03afeb2d4e3eba927 # PR #54
         with:
           cache: true
-          registry-url: https://npm.pkg.github.com
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NODE_AUTH_TOKEN }}
       - run: vpx void deploy