Drop 3.8 testing, add 3.13 testing, upgrade Black

Also bump some GitHub Actions versions.

.github/workflows/deploy-latest.yml

@@ -20,7 +20,7 @@ jobs:
       # gcloud commmand breaks on higher Python versions, so stick with 3.9:
       with:
         python-version: "3.9"
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       name: Configure pip caching
       with:
         path: ~/.cache/pip

.github/workflows/prettier.yml

@@ -10,8 +10,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out repo
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
-    - uses: actions/cache@v2
+    - uses: actions/cache@v4
       name: Configure npm caching
       with:
         path: ~/.npm

.github/workflows/test-pyodide.yml

@@ -12,9 +12,9 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.10
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: "3.10"
         cache: 'pip'

.github/workflows/test-sqlite-support.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest]
-        python-version: [  "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         sqlite-version: [
           #"3", # latest version
           "3.46",

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}

datasette/views/__init__.py

@@ -1,3 +1,2 @@
 class Context:
     "Base class for all documented contexts"
-    pass

setup.py

@@ -83,8 +83,8 @@ setup(
             "pytest-xdist>=2.2.1",
             "pytest-asyncio>=0.17",
             "beautifulsoup4>=4.8.1",
-            "black==24.8.0",
+            "black==25.1.0",
-            "blacken-docs==1.18.0",
+            "blacken-docs==1.19.1",
             "pytest-timeout>=1.4.2",
             "trustme>=0.7",
             "cogapp>=3.3.0",