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chore(tasks): use cargo insta's diff printing implementation (#18691)
The previous implementation is easily confusing, as the old line index and the new line index are in the same column.
The new implementation is based on [Cargo insta diff printing](https://github.com/mitsuhiko/insta/blob/8a5b77531f89bc78d00cab17f2ac8b2c69ceadab/insta/src/output.rs#L238-L296).
### Example
```shell
❯ cargo run -p oxc_prettier_conformance -- --filter "typescript/union/comments/18106.ts"
Failed ❌
26 26 │ | [string, ExpressionNode, ExpressionNode]
27 27 │ | [string, ExpressionNode, ExpressionNode, ObjectExpression] = 1;
28 28 │
29 │-type A2 =
30 │- /* block comment */
29 │+type A2 = /* block comment */
31 30 │ | [string]
32 31 │ | [string, ExpressionNode]
33 32 │ | [string, ExpressionNode, ExpressionNode]
34 33 │ | [string, ExpressionNode, ExpressionNode, ObjectExpression];
35 34 │
36 │-type A3 =
37 │- /* block comment
35 │+type A3 = /* block comment
38 36 │ */
39 37 │ | [string]
40 38 │ | [string, ExpressionNode]
``` Active Branches
#186960%
#186520%
#18560N/A
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