Bump scitools/workflows in the dependencies group (#275)

Bumps the dependencies group with 1 update: [scitools/workflows](https://github.com/scitools/workflows).


Updates `scitools/workflows` from 2024.09.6 to 2024.09.8
- [Release notes](https://github.com/scitools/workflows/releases)
- [Commits](SciTools/workflows@2024.09.6...2024.09.8)

---
updated-dependencies:
- dependency-name: scitools/workflows
  dependency-type: direct:production
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci-locks.yml

@@ -18,5 +18,5 @@ concurrency:
 
 jobs:
   refresh_lockfiles:
-    uses: scitools/workflows/.github/workflows/[email protected].6
+    uses: scitools/workflows/.github/workflows/[email protected].8
     secrets: inherit

.github/workflows/ci-manifest.yml

@@ -25,4 +25,4 @@ concurrency:
 jobs:
   manifest:
     name: "check-manifest"
-    uses: scitools/workflows/.github/workflows/[email protected].6
+    uses: scitools/workflows/.github/workflows/[email protected].8