chore(uv): Prefer --locked for dependency sync (#1852)

Adopt uv best practice for dependency synchronization.

[Note]
- (uv sync --frozen) proceeds with an out-dated lockfile.
  This could lead to inconsistencies.

[Docs]
See: https://docs.astral.sh/uv/concepts/projects/sync/#locking-and-syncing

src/git/Dockerfile

@@ -14,13 +14,13 @@ ENV UV_LINK_MODE=copy
 RUN --mount=type=cache,target=/root/.cache/uv \
     --mount=type=bind,source=uv.lock,target=uv.lock \
     --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
-    uv sync --frozen --no-install-project --no-dev --no-editable
+    uv sync --locked --no-install-project --no-dev --no-editable
 
 # Then, add the rest of the project source code and install it
 # Installing separately from its dependencies allows optimal layer caching
 ADD . /app
 RUN --mount=type=cache,target=/root/.cache/uv \
-    uv sync --frozen --no-dev --no-editable
+    uv sync --locked --no-dev --no-editable
 
 FROM python:3.12-slim-bookworm