chore: fix ci/cd (#2685)

RUN_CODSPEED=1

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Switches benchmarks to CodSpeed Divan with CI updates, bumps MSRV to
1.89, upgrades key deps (ariadne/logos/rowan/smol_str), and adapts
diagnostics to Ariadne’s new API.
> 
> - **Benchmarks**:
> - Migrate from `codspeed-bencher-compat` to `codspeed-divan-compat`
(`divan`) with `#[divan::bench]`, `divan::main()`, and `black_box`.
> - Add/expand incremental and parsing/lexing benches; remove
`benchmark_group!/benchmark_main!` usage.
>   - Update build script to generate Divan-style benches.
> - **CI**:
> - Run instrumented benchmarks on `codspeed-macro`; add `mode:
walltime`; build `baml_tests` for CodSpeed.
> - Fix pull_request `paths` quoting; simplify benchmark run conditions.
> - **Diagnostics**:
> - Update `baml_diagnostics` to new Ariadne `Report::build` signature
using `(file_id, range)`.
> - **MSRV & Dependencies**:
>   - Bump MSRV to `1.89` in `Cargo.toml`.
> - Upgrade `ariadne`→`0.6`, `logos`→`0.15`, `rowan`→`0.16`,
`smol_str`→`0.3`.
> - Replace CodSpeed crates with latest Divan-compatible versions;
refresh `Cargo.lock`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
65b7617. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: hellovai

.github/workflows/ci.yaml

@@ -5,8 +5,8 @@ on:
     branches: [main, canary]
   pull_request:
     paths:
-      - 'baml_language/**'
-      - '.github/workflows/ci.yaml'
+      - "baml_language/**"
+      - ".github/workflows/ci.yaml"
   workflow_dispatch:
 
 concurrency:
@@ -398,7 +398,7 @@ jobs:
       - name: "Check dependencies"
         run: cargo deny check
         working-directory: baml_language
-        continue-on-error: true  # For now, just warn
+        continue-on-error: true # For now, just warn
 
   snapshot-tests:
     name: "snapshot tests"
@@ -449,10 +449,9 @@ jobs:
 
   benchmarks-instrumented:
     name: "benchmarks instrumented (baml)"
-    runs-on: ubuntu-24.04
+    runs-on: codspeed-macro
     needs: determine_changes
     if: |
-      github.repository == 'BoundaryML/baml-2' &&
       (
         github.ref == 'refs/heads/main' ||
         github.ref == 'refs/heads/canary' ||
@@ -484,12 +483,13 @@ jobs:
           tool: cargo-codspeed
 
       - name: "Build benchmarks"
-        run: cargo codspeed build --features "codspeed" -p baml_db
+        run: cargo codspeed build -p baml_tests
         working-directory: baml_language
 
       - name: "Run benchmarks"
         uses: CodSpeedHQ/action@v3
         with:
+          mode: walltime
           run: cd baml_language && cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}
 
@@ -549,4 +549,4 @@ jobs:
             exit 1
           fi
 
-          echo "All required checks passed!"
+          echo "All required checks passed!"