chore(deps): bump actions/setup-go in /.github/actions/bootstrap (#4189)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 5.5.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](d35c59abb0...4469467582)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: 6.0.0
  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>

.github/actions/bootstrap/action.yaml

@@ -29,7 +29,7 @@ runs:
   using: "composite"
   steps:
     # note: go mod and build is automatically cached on default with v4+
-    - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+    - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
       if: inputs.go-version != ''
       with:
         go-version: ${{ inputs.go-version }}