Fix permissions

Author: bdice

.devcontainer/Dockerfile

@@ -56,7 +56,8 @@ RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 140 \
 # Install velox helper scripts
 COPY velox-testing/scripts/devcontainer/* /usr/local/bin/
 RUN chmod 755 /usr/local/bin/build-* /usr/local/bin/configure-* \
-              /usr/local/bin/test-* /usr/local/bin/clean-* /usr/local/bin/post-create
+              /usr/local/bin/test-* /usr/local/bin/clean-* /usr/local/bin/post-create \
+              /usr/local/bin/_devcontainer_common_utils.sh
 
 # Environment for velox builds
 # VELOX_DEPENDENCY_SOURCE is read from env by CMake