Bump scitools/workflows from 2023.04.2 to 2023.04.3 (#77)

Bumps [scitools/workflows](https://github.com/scitools/workflows) from 2023.04.2 to 2023.04.3.
- [Release notes](https://github.com/scitools/workflows/releases)
- [Commits](SciTools/workflows@2023.04.2...2023.04.3)

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

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

Author: dependabot[bot]

.github/workflows/ci-manifest.yml

@@ -23,4 +23,4 @@ concurrency:
 jobs:
   manifest:
     name: "check-manifest"
-    uses: scitools/workflows/.github/workflows/[email protected].2
+    uses: scitools/workflows/.github/workflows/[email protected].3

.github/workflows/refresh-lockfiles.yml

@@ -18,5 +18,5 @@ concurrency:
 
 jobs:
   refresh_lockfiles:
-    uses: scitools/workflows/.github/workflows/[email protected].2
+    uses: scitools/workflows/.github/workflows/[email protected].3
     secrets: inherit