build: update colcon-core and pin setuptools to fix dependency resolution in CI

Author: arjo129

pixi.lock

@@ -7,7 +7,9 @@ platforms = ["linux-64"]
 
 [dependencies]
 python = ">=3.11"
+setuptools = "<80"
 cmake = "*"
+
 ninja = "*"
 gcc_linux-64 = "*"
 gxx_linux-64 = "*"
@@ -39,12 +41,15 @@ pytest = "<8"
 colcon-common-extensions = "*"
 colcon-cargo = "*"
 colcon-ros-cargo = "*"
+colcon-core = ">=0.21.0"
 
 [tasks]
 # Install cargo-ament-build into the pixi environment's bin folder
 setup-cargo = "test -f $CONDA_PREFIX/bin/cargo-ament-build || cargo install cargo-ament-build --root $CONDA_PREFIX"
 # Build the workspace using colcon
 build = { cmd = "colcon build", depends-on = ["setup-cargo"], env = { LIBCLANG_PATH = "$CONDA_PREFIX/lib" } }
+
+
 # Run tests
 test = { cmd = "colcon test --packages-select rmf_path_server_test --python-testing pytest --event-handlers console_direct+", depends-on = ["build"], env = { LIBCLANG_PATH = "$CONDA_PREFIX/lib" } }