[ROCm][CI/Build] Change install location of uv (#28741)

Signed-off-by: Gregory Shtrasberg <Gregory.Shtrasberg@amd.com>

docker/Dockerfile.rocm

@@ -17,10 +17,7 @@ RUN python3 -m pip install --upgrade pip
 RUN apt-get purge -y sccache; python3 -m pip uninstall -y sccache; rm -f "$(which sccache)"
 
 # Install UV
-RUN curl -LsSf https://astral.sh/uv/install.sh | sh
-
-# Activate virtual environment and add uv to PATH
-ENV PATH="/root/.local/bin:$PATH"
+RUN curl -LsSf https://astral.sh/uv/install.sh | env UV_INSTALL_DIR="/usr/local/bin" sh
 
 # This timeout (in seconds) is necessary when installing some dependencies via uv since it's likely to time out
 # Reference: https://github.com/astral-sh/uv/pull/1694