Use tox-uv instead of manually shelling out to uv

pyproject.toml

@@ -38,6 +38,7 @@ dev = [
   "pyright>=1.1",
   "responses>=0.23",
   "tox>=4.11",
+  "tox-uv>=1.28",
   "watchfiles>=1.1.0",
 ]
 

tox.ini

@@ -1,25 +1,24 @@
 [tox]
-envlist = clean,py{39,310,311,312,313,314},report
+requires = tox-uv
+envlist = clean,py{310,311,312,313,314},report
 
 [testenv]
-allowlist_externals = uv
+runner = uv-venv-lock-runner
 parallel_show_output = true
 depends =
-    py{39,310,311,312,313,314}: clean
-    report: py{39,310,311,312,313,314}
+    py{310,311,312,313,314}: clean
+    report: py{310,311,312,313,314}
 commands =
-    uv run python --version
-    uv run coverage run --context={envname} -p -m pytest -vv {posargs}
+    python --version
+    coverage run --context={envname} -p -m pytest -vv {posargs}
 
 [testenv:report]
-allowlist_externals = uv
 passenv = COVERAGE_REPORT_COMMAND
 parallel_show_output = true
 commands =
-    uv run coverage combine
-    uv run {env:COVERAGE_REPORT_COMMAND:coverage report}
+    coverage combine
+    {env:COVERAGE_REPORT_COMMAND:coverage report}
 
 [testenv:clean]
-allowlist_externals = uv
 commands =
-    uv run coverage erase
+    coverage erase