Rename asm json import command-line tests

[aarlt]

See #14612 (comment)

[nikola-matic]

@aarlt can you fetch fresh develop and rebase - the fix for win_pyscripts went in last week I believe.

[nikola-matic]

@aarlt feel free to merge if there's no dependencies.

[ekpyron]

Too late for merging - now it needs a rebase or sth :-). It does pay of to just merge "clearly harmless" stuff like this right with approving, resp. setting it to auto-merge (don't overdo that, but just test-renaming is safe-enough...)

[github-actions]

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[cameel]

If you're renaming these tests it would probably make sense to also rename the standard_import_evmasm_... ones to standard_import_asm_json_... since they're testing the same feature, just via Standard JSON.