💚 don't use --frozen when installing different a numpy version

Author: jorenham

.github/workflows/ci.yml

@@ -12,7 +12,6 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  UV_FROZEN: 1
   # Many color libraries just need this to be set to any value, but at least
   # one distinguishes color depth, where "3" -> "256-bit color".
   FORCE_COLOR: 3
@@ -21,6 +20,8 @@ jobs:
   lint:
     name: lint
     runs-on: ubuntu-latest
+    env:
+      UV_FROZEN: 1
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
@@ -40,6 +41,8 @@ jobs:
   test_runtime:
     name: runtime tests
     runs-on: ${{ matrix.runs-on }}
+    env:
+      UV_FROZEN: 1
     strategy:
       fail-fast: false
       matrix:
@@ -81,7 +84,7 @@ jobs:
 
       - name: mypy
         run: >
-          uv run --no-editable --group=test_numpy --with="numpy==${{ matrix.numpy-version }}"
+          uv run --no-editable --group=test_numpy --with="numpy==${{ matrix.numpy-version }}" --active
           mypy --tb --no-incremental --cache-dir=/dev/null tests/integration/test_numpy.pyi
 
       # TODO: (based)pyright