build(deps): bump slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml

Bumps [slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml](https://github.com/slsa-framework/slsa-github-generator) from 1.4.0 to 2.1.0.
- [Release notes](https://github.com/slsa-framework/slsa-github-generator/releases)
- [Changelog](https://github.com/slsa-framework/slsa-github-generator/blob/main/CHANGELOG.md)
- [Commits](slsa-framework/slsa-github-generator@v1.4.0...v2.1.0)

---
updated-dependencies:
- dependency-name: slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/go-ossf-slsa3-publish.yml

@@ -29,7 +29,7 @@ jobs:
       id-token: write # To sign.
       contents: write # To upload release assets.
       actions: read   # To read workflow path.
-    uses: slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml@v1.4.0
+    uses: slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml@v2.1.0
     with:
       go-version: 1.17
       # =============================================================================================================