Fix scripts issues found by mypy

[pbchekin]

scripts/pass_rate.py:140: error: "ArgumentParser" has no attribute "reports"  [attr-defined]
scripts/pass_rate.py:141: error: "ArgumentParser" has no attribute "skiplist_dir"  [attr-defined]
scripts/pass_rate.py:146: error: "ArgumentParser" has no attribute "reports"  [attr-defined]
scripts/run_tutorial.py:44: error: Argument 1 to "module_from_spec" has incompatible type "ModuleSpec | None"; expected "ModuleSpec"  [arg-type]
scripts/run_tutorial.py:48: error: Item "None" of "ModuleSpec | None" has no attribute "loader"  [union-attr]
scripts/run_tutorial.py:48: error: Item "None" of "Loader | Any | None" has no attribute "exec_module"  [union-attr]
scripts/compare-ci-runs/compare_runs.py:132: error: Argument 2 to "merge_triton_xetla_reports_data" has incompatible type "str"; expected "Path"  [arg-type]
scripts/compare-ci-runs/compare_runs.py:132: error: Argument 3 to "merge_triton_xetla_reports_data" has incompatible type "str"; expected "Path"  [arg-type]
Found 8 errors in 3 files (checked 7 source files)