build: introduce uv as Python package manager (#16317)

Co-authored-by: QuantumGhost <obelisk.reg+git@gmail.com>

dev/update-uv

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Update dependencies in dify/api project using uv
+set -e
+set -o pipefail
+
+SCRIPT_DIR="$(dirname "$0")"
+REPO_ROOT="$(dirname "${SCRIPT_DIR}")"
+
+# rely on `poetry` in path
+if ! command -v uv &> /dev/null; then
+    echo "Installing uv ..."
+    pip install uv
+fi
+
+cd "${REPO_ROOT}"
+
+# refreshing lockfile, updating locked versions
+uv lock --project api --upgrade
+
+# check uv.lock in sync with pyproject.toml
+uv lock --project api --check