Bump pkgxdev/setup from 3 to 4

Bumps [pkgxdev/setup](https://github.com/pkgxdev/setup) from 3 to 4.
- [Release notes](https://github.com/pkgxdev/setup/releases)
- [Commits](pkgxdev/setup@v3...v4)

---
updated-dependencies:
- dependency-name: pkgxdev/setup
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/cd.yml

@@ -118,6 +118,6 @@ jobs:
           aws-secret-access-key: ${{ secrets.WWW_AWS_SECRET_ACCESS_KEY }}
           aws-region: us-east-2
       - uses: actions/checkout@v4
-      - uses: pkgxdev/setup@v3
+      - uses: pkgxdev/setup@v4
       - run: pkgx hugo
       - run: pkgx hugo deploy

.github/workflows/indexer.yml

@@ -38,7 +38,7 @@ jobs:
           path: pantry
           fetch-depth: 0  # needed to get git metadata for ordering purposes
 
-      - uses: pkgxdev/setup@v3
+      - uses: pkgxdev/setup@v4
 
       - uses: aws-actions/configure-aws-credentials@v4
         with:
@@ -77,7 +77,7 @@ jobs:
     needs: indexer
     runs-on: ubuntu-latest
     steps:
-      - uses: pkgxdev/setup@v3
+      - uses: pkgxdev/setup@v4
       - uses: actions/checkout@v4
 
       - uses: actions/checkout@v4
@@ -129,7 +129,7 @@ jobs:
         with:
           name: pkg-index
 
-      - uses: pkgxdev/setup@v3
+      - uses: pkgxdev/setup@v4
 
       - run: utils/.github/scripts/gen-algolia-data.ts > algolia.json