W0051 does not work inside a map inside an ?assertMatch

[eproxus]

Describe the bug

W0051 warnings should trigger in the following code:

?assertMatch(#{key := <<"foo">>}, bar),

To Reproduce**

Lint the code above.

Expected behavior

A W0051 warning.

Actual behavior

No warning.

Context

• ELP Version (output of elp version): elp 1.1.0+build-2026-02-27
• Editor used: Zed 0.226.5+stable.197.07dae3b7020b0ad79ed91e18c750a16952432866

[robertoaloi]

@alanz The binary_string_to_sigil linter is based on SSR, and I strongly suspect this is related to the internal task T256431185. Assigning to you.