ci: Reuse workflow for shell

docs/github/maintainers.rst

@@ -69,7 +69,7 @@ Onboard consultants or Start a project
 
    .. note::
 
-      The ``PAT`` environment variable is a personal access token of the ``ocp-deploy`` user with a ``repo`` scope. This user is the only member of the Robots team, which needs permission to push fixes to protected branches.
+      The ``PAT`` environment variable is a personal access token of the ``ocp-deploy`` user to access all repositories of the ``open-contracting`` organization with a *Contents* permission of *Read and write*. This user is the only member of the Robots team, which needs permission to push fixes to protected branches.
 
 #. Add the new repositories to `pre-commit ci <https://github.com/organizations/open-contracting/settings/installations/20658712>`__
 #. Add the new repositories to `Coveralls <https://coveralls.io/repos/new>`__

docs/shell/samples/shell.yml

@@ -1,14 +1,5 @@
 name: Lint Shell
 on: [push, pull_request]
 jobs:
-  build:
-    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - run: |
-          sudo apt update
-          sudo apt install devscripts shellcheck shfmt
-      - run: checkbashisms $(shfmt -f .)
-      - run: shellcheck $(shfmt -f .)
-      - run: shfmt -d -i 4 -sr $(shfmt -f .)
+  lint:
+    uses: open-contracting/.github/.github/workflows/shell.yml@main