Update script used to install uv to install version 0.11.7

.github/workflows/test-exercises.yml

@@ -22,11 +22,10 @@ jobs:
       - uses: actions/checkout@v6
       - name: Install REUSE
         run: |
-          ./CI/setup-uv.sh
-          uv pip install reuse
+          ./CI/install-uv.sh
       - name: Validate presence of copyright and license info (python w/reuse)
         run: |
-          uv run reuse lint
+          uvx reuse lint
   test-exercise:
     timeout-minutes: 30   
     runs-on: ubuntu-latest
@@ -40,7 +39,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install build dependencies
         shell: bash

CI/install-uv.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# SPDX-FileCopyrightText: 2026 The P4 Language Consortium
+# SPDX-License-Identifier: Apache-2.0
+
+set -eu
+
+UV_VERSION="${UV_VERSION:-0.11.7}"
+UV_INSTALL_DIR="${HOME}/.local/bin"
+
+if command -v uv >/dev/null 2>&1; then
+    exit 0
+fi
+
+mkdir -p "${UV_INSTALL_DIR}"
+
+if command -v curl >/dev/null 2>&1; then
+    env UV_UNMANAGED_INSTALL="${UV_INSTALL_DIR}" \
+        sh -c "$(curl -LsSf https://astral.sh/uv/${UV_VERSION}/install.sh)"
+elif command -v wget >/dev/null 2>&1; then
+    env UV_UNMANAGED_INSTALL="${UV_INSTALL_DIR}" \
+        sh -c "$(wget -qO- https://astral.sh/uv/${UV_VERSION}/install.sh)"
+else
+    echo "Neither curl nor wget is available to install uv" >&2
+    exit 1
+fi
+
+export PATH="${UV_INSTALL_DIR}:${PATH}"
+if [ -n "${GITHUB_PATH:-}" ]; then
+    echo "${UV_INSTALL_DIR}" >> "${GITHUB_PATH}"
+fi