Don't exit script when c extension detected (#467)

* Don't exit script when c extension detected

* Add uv support

* Update ensure_pure_cbor2.sh

Author: nielstron

ensure_pure_cbor2.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Script to ensure cbor2 is installed with pure Python implementation
 
-set -e
+set -x
 
 # Check if poetry is available, otherwise use python directly
 if command -v poetry &> /dev/null; then
@@ -27,12 +27,12 @@ sys.exit(1 if using_c_ext else 0)
 
 if [ $? -ne 0 ]; then
     echo "Reinstalling cbor2 with pure Python implementation..."
-    $PYTHON -m pip uninstall -y cbor2
-    CBOR2_BUILD_C_EXTENSION=0 $PYTHON -m pip install --no-binary cbor2 "cbor2==$CBOR2_VERSION" --force-reinstall
+    $PYTHON -m pip uninstall -y cbor2 || uv pip uninstall cbor2
+    CBOR2_BUILD_C_EXTENSION=0 $PYTHON -m pip install --no-binary cbor2 "cbor2==$CBOR2_VERSION" --force-reinstall || CBOR2_BUILD_C_EXTENSION=0 uv pip install --no-binary cbor2 "cbor2==$CBOR2_VERSION" --force-reinstall
     echo "Successfully reinstalled cbor2 with pure Python implementation"
 else
     echo "Already using pure Python implementation of cbor2"
 fi
 
 # Clean up
-rm -f .cbor2_version 
+rm -f .cbor2_version