Bump actions/attest-sbom from 3 to 4 (#643)

Bumps [actions/attest-sbom](https://github.com/actions/attest-sbom) from 3 to 4.
- [Release notes](https://github.com/actions/attest-sbom/releases)
- [Changelog](https://github.com/actions/attest-sbom/blob/main/RELEASE.md)
- [Commits](actions/attest-sbom@v3...v4)

---
updated-dependencies:
- dependency-name: actions/attest-sbom
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ben Word <ben@benword.com>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -36,42 +36,42 @@ jobs:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
 
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Darwin_arm64.tar.gz.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Darwin_x86_64.tar.gz.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Linux_arm64.tar.gz.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Linux_i386.tar.gz.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Linux_x86_64.tar.gz.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Windows_arm64.zip.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt
           sbom-path: ./dist/trellis_Windows_i386.zip.sbom.json
-      - uses: actions/attest-sbom@v3
+      - uses: actions/attest-sbom@v4
         with:
           show-summary: false
           subject-checksums: ./dist/trellis_checksums.txt