fix(deps): update github.com/sapcc/go-bits digest to f6f7275

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/sapcc/go-bits	require	digest	12c1e99 → f6f7275

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: go.sum

Command failed: go mod tidy
go: downloading github.com/matryer/is v1.4.1
go: downloading github.com/stretchr/testify v1.11.1
go: downloading gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15
go: downloading github.com/frankban/quicktest v1.14.6
go: downloading github.com/davecgh/go-spew v1.1.1
go: downloading github.com/pmezard/go-difflib v1.0.0
go: downloading github.com/kr/pretty v0.3.1
go: downloading github.com/google/go-cmp v0.7.0
go: downloading github.com/kr/text v0.2.0
go: downloading github.com/rogpeppe/go-internal v1.9.0
go: finding module for package github.com/sapcc/go-bits/assert
go: github.com/sapcc/cyclone/pkg imports
	github.com/sapcc/swift-http-import/pkg/objects tested by
	github.com/sapcc/swift-http-import/pkg/objects.test imports
	github.com/sapcc/go-bits/assert: module github.com/sapcc/go-bits@latest found (v0.0.0-20260730170321-f6f727520601), but does not contain package github.com/sapcc/go-bits/assert