* main:
  Fix mdtest ignore python code blocks (#20139)
  [ty] add support for cyclic legacy generic protocols (#20125)
  [ty] add cycle detection for find_legacy_typevars (#20124)
  Use new diff rendering format in tests (#20101)
  [ty] Fix 'too many cycle iterations' for unions of literals (#20137)
  [ty] No boundness analysis for implicit instance attributes (#20128)
  Bump 0.12.11 (#20136)
  [ty] Benchmarks for problematic implicit instance attributes cases (#20133)
  [`pyflakes`] Fix `allowed-unused-imports` matching for top-level modules (`F401`) (#20115)
  Move GitLab output rendering to `ruff_db` (#20117)
  [ty] Evaluate reachability of non-definitely-bound to Ambiguous (#19579)
  [ty] Introduce a representation for the top/bottom materialization of an invariant generic (#20076)
  [`flake8-async`] Implement `blocking-http-call-httpx` (`ASYNC212`) (#20091)
  [ty] print diagnostics with fully qualified name to disambiguate some cases (#19850)
  [`ruff`] Preserve relative whitespace in multi-line expressions (`RUF033`) (#19647)

## Summary

Resolves astral-sh/ty#1103

## Test Plan

Edited `crates/ty_python_semantic/resources/mdtest/literal/boolean.md`
with:

```
# Boolean literals

```python
reveal_type(True)  # revealed: Literal[False]
reveal_type(False)  # revealed: Literal[False]
```

Ran `cargo test -p ty_python_semantic --test mdtest -- mdtest__literal_boolean`

And we get a test failure:

```
running 1 test
test mdtest__literal_boolean ... FAILED

failures:

---- mdtest__literal_boolean stdout ----

boolean.md - Boolean literals (c336e1af3d538acd)

crates/ty_python_semantic/resources/mdtest/literal/boolean.md:4
unmatched assertion: revealed: Literal[False]
crates/ty_python_semantic/resources/mdtest/literal/boolean.md:4
unexpected error: 13 [revealed-type] "Revealed type: `Literal[True]`"

To rerun this specific test, set the environment variable:
MDTEST_TEST_FILTER='boolean.md - Boolean literals (c336e1af3d538acd)'
MDTEST_TEST_FILTER='boolean.md - Boolean literals (c336e1af3d538acd)'
cargo test -p ty_python_semantic --test mdtest --
mdtest__literal_boolean

--------------------------------------------------


thread 'mdtest__literal_boolean' panicked at
crates/ty_test/src/lib.rs:138:5:
Some tests failed.
note: run with `RUST_BACKTRACE=1` environment variable to display a
backtrace


failures:
    mdtest__literal_boolean

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 263
filtered out; finished in 0.18s

error: test failed, to rerun pass `-p ty_python_semantic --test mdtest`
```

As expected.

And when i checkout main and keep the same mdtest file all tests pass (as the repro).