Bump OpenAstronomy/github-actions-workflows

Bumps the actions group in /.github/workflows with 1 update: [OpenAstronomy/github-actions-workflows](https://github.com/openastronomy/github-actions-workflows).


Updates `OpenAstronomy/github-actions-workflows` from 2.1.0 to 2.2.1
- [Release notes](https://github.com/openastronomy/github-actions-workflows/releases)
- [Commits](OpenAstronomy/github-actions-workflows@8682314...28e9474)

---
updated-dependencies:
- dependency-name: OpenAstronomy/github-actions-workflows
  dependency-version: 2.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci_workflows.yml

@@ -14,7 +14,7 @@ concurrency:
 
 jobs:
   tests:
-    uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@86823142467dd2afcd1bbac57d3a664cf468eb3b # v2.1.0
+    uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@28e947497bed4d6ec3fa1d66d198e95a1d17bc63 # v2.2.1
     with:
       envs: |
         - linux: codestyle
@@ -31,7 +31,7 @@ jobs:
         - linux: py312-test-devdeps
   publish:
     needs: tests
-    uses: OpenAstronomy/github-actions-workflows/.github/workflows/publish_pure_python.yml@86823142467dd2afcd1bbac57d3a664cf468eb3b # v2.1.0
+    uses: OpenAstronomy/github-actions-workflows/.github/workflows/publish_pure_python.yml@28e947497bed4d6ec3fa1d66d198e95a1d17bc63 # v2.2.1
     with:
       test_extras: test
       test_command: pytest $GITHUB_WORKSPACE/tests; pytest --arraydiff $GITHUB_WORKSPACE/tests