ci: align with modern-di

- Bump pins (checkout@v4 → @v6, setup-just@v2 → @v4, setup-uv@v3
  → @v8.2.0) across ci.yml, publish.yml, AND docs.yml.
- Split ci.yml into thin trigger wrapper + reusable _checks.yml. The
  pytest job preserves its existing `just test --cov-report xml`
  invocation.

No codecov in this repo.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: lesnik512

.github/workflows/_checks.yml

@@ -0,0 +1,37 @@
+name: checks
+on:
+  workflow_call: {}
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: extractions/setup-just@v4
+      - uses: astral-sh/setup-uv@v8.2.0
+        with:
+          enable-cache: true
+          cache-dependency-glob: "**/pyproject.toml"
+      - run: uv python install 3.11
+      - run: just install lint-ci
+
+  pytest:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - "3.11"
+          - "3.12"
+          - "3.13"
+          - "3.14"
+    steps:
+      - uses: actions/checkout@v6
+      - uses: extractions/setup-just@v4
+      - uses: astral-sh/setup-uv@v8.2.0
+        with:
+          enable-cache: true
+          cache-dependency-glob: "**/pyproject.toml"
+      - run: uv python install ${{ matrix.python-version }}
+      - run: just install
+      - run: just test --cov-report xml

.github/workflows/ci.yml

@@ -1,5 +1,4 @@
 name: main
-
 on:
   push:
     branches:
@@ -11,35 +10,5 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: extractions/setup-just@v2
-      - uses: astral-sh/setup-uv@v3
-        with:
-          enable-cache: true
-          cache-dependency-glob: "**/pyproject.toml"
-      - run: uv python install 3.11
-      - run: just install lint-ci
-
-  pytest:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version:
-          - "3.11"
-          - "3.12"
-          - "3.13"
-          - "3.14"
-    steps:
-      - uses: actions/checkout@v4
-      - uses: extractions/setup-just@v2
-      - uses: astral-sh/setup-uv@v3
-        with:
-          enable-cache: true
-          cache-dependency-glob: "**/pyproject.toml"
-      - run: uv python install ${{ matrix.python-version }}
-      - run: just install
-      - run: just test --cov-report xml
+  checks:
+    uses: ./.github/workflows/_checks.yml

.github/workflows/docs.yml

@@ -20,9 +20,9 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-      - uses: extractions/setup-just@v2
-      - uses: astral-sh/setup-uv@v3
+      - uses: extractions/setup-just@v4
+      - uses: astral-sh/setup-uv@v8.2.0
       - run: just docs-deploy

.github/workflows/publish.yml

@@ -9,9 +9,9 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: extractions/setup-just@v2
-      - uses: astral-sh/setup-uv@v3
+      - uses: actions/checkout@v6
+      - uses: extractions/setup-just@v4
+      - uses: astral-sh/setup-uv@v8.2.0
       - run: just publish
         env:
           PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}