Fixes in `.gitignore` post LibASR sync #7567

Job	Run time
LPython CI (3.10, ubuntu-latest)	10m 33s
LPython CI (3.10, macos-latest)	6m 22s
Build LPython to WASM	7m 5s
LPython CI (3.10, windows-2019)	15m 10s
Test PIP Installable Packages	2m 50s
Upload Tarball	51s
Run Integration tests with Python 3.10	3m 9s
Run SymPy tests	4m 32s
Run Integration tests with Python 3.11	3m 12s
Run Integration tests with Python 3.12	3m 28s
Build Jupyter Kernel	3m 59s
Test CPython Interop (@pythoncall)	2m 58s
Test LLVM 10	3m 31s
Test LLVM 15	3m 33s
Check Release build	6m 38s
Test LLVM 16	3m 31s
Check Debug build	3m 32s
Run Integration tests with Python 3.9	3m 13s
	1h 28m 7s

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