ci(integration): hand the uv cache to the test process

The lane exports UV_OFFLINE for itself and then starts pytest through
env -i, which drops both that flag and the UV_CACHE_DIR the uv setup
action points at its restored cache. The docs gate test builds the base
tree with uv, so it looked in an empty default cache and then tried
PyPI, which the lane blocks.

Pass both variables to the test process, the way rc/1.109.0 already
does, and drop the UV_OFFLINE line from the test that could not help
without the cache.

.circleci/scripts/run_integration.sh

@@ -128,8 +128,6 @@ fi
 sudo iptables -L integration_only -n -v -x > "$results/egress-guard.txt"
 awk '$3 == "REJECT" && $1 > 0 { rejected=1 } END { exit !rejected }' "$results/egress-guard.txt"
 
-export UV_OFFLINE=true
-
 if [ "$mode" = parity ]; then
   export INTEGRATION_WORKERS=1
 else
@@ -257,6 +255,7 @@ elif [ "${INTEGRATION_COVERAGE:-0}" = 1 ]; then
 fi
 
 env -i PATH="$PATH" HOME="$HOME" PYTHONPATH="$PYTHONPATH" \
+  UV_OFFLINE=true UV_CACHE_DIR="$(uv cache dir)" \
   INTEGRATION_RUN_ID="$integration_identity" \
   DATABASE_URL="$DATABASE_URL" \
   "${shared_services[@]}" "${worker_coverage[@]}" \

tests/integration/configuration/test_openapi_docs_gate.py

@@ -1,11 +1,9 @@
 from typing import Final
 
 import openapi_docs_gate as gate
-import pytest
 
 
-def test_base_counts_imports_native_extension_from_detached_worktree(monkeypatch: pytest.MonkeyPatch) -> None:
-    monkeypatch.setenv("UV_OFFLINE", "1")
+def test_base_counts_imports_native_extension_from_detached_worktree() -> None:
     expected_counts: Final = dict(gate.count_by_rule(gate.head_violations()))
     assert expected_counts
     assert dict(gate.base_counts("HEAD")) == expected_counts