Unsigned int support #7681

Job	Run time
LPython CI (3.10, ubuntu-latest)	10m 27s
Build LPython to WASM	7m 19s
LPython CI (3.10, macos-latest)	8m 20s
Check Debug build	3m 28s
LPython CI (3.10, windows-2025)	17m 30s
Test PIP Installable Packages	2m 51s
Test CPython Interop (@pythoncall)	3m 1s
Run SymPy tests	4m 18s
Test LLVM 15	3m 27s
Test LLVM 16	3m 29s
Run Integration tests with Python 3.9	4m 26s
Run Integration tests with Python 3.10	3m 22s
Check Release build	6m 57s
Run Integration tests with Python 3.12	4m 4s
Test LLVM 10	3m 18s
Build Jupyter Kernel	4m 5s
Run Integration tests with Python 3.11	6m 13s
Upload Tarball	50s
	1h 37m 25s

Provide feedback