Run test.yml on schedule and allow workflow dispatch for all jobs

.github/workflows/coverage.yml

@@ -1,5 +1,5 @@
 name: Run coverage tests
-on: workflow_call
+on: [workflow_dispatch, workflow_call]
 jobs:
   coverage:
     runs-on: ubuntu-24.04

.github/workflows/docs.yml

@@ -1,5 +1,5 @@
 name: Build & test docs
-on: workflow_call
+on: [workflow_dispatch, workflow_call]
 jobs:
   docs:
     runs-on: ubuntu-24.04

.github/workflows/linter.yml

@@ -1,5 +1,5 @@
 name: Linting with flake8, etc
-on: workflow_call
+on: [workflow_dispatch, workflow_call]
 jobs:
   linter:
     runs-on: ubuntu-24.04

.github/workflows/publish.yml

@@ -1,5 +1,5 @@
 name: Publish on PyPI
-on: push
+on: [push, workflow_dispatch, workflow_call]
 jobs:
   build:
     name: Build distributions

.github/workflows/test.yml

@@ -1,5 +1,10 @@
 name: test
-on: [push, pull_request]
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 2'
 jobs:
   linter:
     uses: ./.github/workflows/linter.yml