Revert "Re-consolidate workflows"

This reverts commit c91f121.

.github/actions/build-dist/action.yml

@@ -0,0 +1,26 @@
+name: Build incremental
+description: Build and upload sdist and wheel
+
+runs:
+  using: "composite"
+  steps:
+
+  - uses: actions/checkout@v4
+
+  - uses: actions/setup-python@v5
+    with:
+      python-version: "3.12"
+
+  - run: pip install build twine
+    shell: bash
+
+  - run: python3 -m build
+    shell: bash
+
+  - run: twine check dist/*.*
+    shell: bash
+
+  - uses: actions/upload-artifact@v4
+    with:
+      name: dist
+      path: dist/*.*

.github/workflows/release.yml

@@ -0,0 +1,36 @@
+name: Release
+
+on:
+  push:
+    tags: ["incremental-*"]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+
+    steps:
+    - uses: ./.github/actions/build-dist
+
+  pypi-publish:
+    runs-on: ubuntu-24.04
+    if: startsWith(github.ref, 'refs/tags/incremental-')
+    needs: [build]
+
+    environment:
+      name: release
+      url: https://pypi.org/p/incremental
+
+    permissions:
+      id-token: write
+
+    steps:
+
+    - uses: actions/download-artifact@v4
+      with:
+        name: dist
+        path: dist/
+
+    - uses: pypa/gh-action-pypi-publish@release/v1

.github/workflows/tests.yaml

@@ -10,7 +10,7 @@ on:
     # the conditions for which gh-pages are updated.
     branches: [ trunk ]
     tags:
-      - "incremental-*"
+      - incremental-*
   pull_request:
     branches: [ trunk, "90-pyproject.toml" ]
 
@@ -29,22 +29,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/checkout@v4
-
-    - uses: actions/setup-python@v5
-      with:
-        python-version: "3.12"
-
-    - run: pip install build twine
-
-    - run: python3 -m build
-
-    - run: twine check dist/*.*
-
-    - uses: actions/upload-artifact@v4
-      with:
-        name: dist
-        path: dist/*.*
+    - uses: ./.github/actions/build-dist
 
   testing:
     runs-on: ubuntu-24.04
@@ -175,24 +160,3 @@ jobs:
       with:
         name: html-report
         path: htmlcov
-
-  pypi-publish:
-    runs-on: ubuntu-24.04
-    if: startsWith(github.ref, 'refs/tags/incremental-')
-    needs: [build, testing]
-
-    environment:
-      name: release
-      url: https://pypi.org/p/incremental
-
-    permissions:
-      id-token: write
-
-    steps:
-
-    - uses: actions/download-artifact@v4
-      with:
-        name: dist
-        path: dist/
-
-    - uses: pypa/gh-action-pypi-publish@release/v1