chore: migrate from npm to pnpm

- Replace package-lock.json with pnpm-lock.yaml
- Set packageManager to pnpm@10.23.0
- Add minimumReleaseAge: 10080 (7 days) for supply chain protection
- Update CI workflows for pnpm

Author: erezrokah

.github/workflows/ci.yml

@@ -15,9 +15,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - name: Install pnpm
+        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5
       - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
         with:
-          cache: "npm"
+          cache: 'pnpm'
           node-version: "24"
 
       - name: Install dependencies

.github/workflows/publish.yml

@@ -14,6 +14,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - name: Install pnpm
+        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5
       - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
         with:
           node-version: "24"

.github/workflows/regen.yml

@@ -22,9 +22,11 @@ jobs:
           permission-pull-requests: write
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - name: Install pnpm
+        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5
       - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
         with:
-          cache: "npm"
+          cache: 'pnpm'
           node-version: "24"
 
       - name: Install dependencies