Build(deps): bump actions/checkout from 5.0.0 to 7.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.0 to 7.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@08c6903...9c091bb)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/benchmark-regressions.yml

@@ -31,7 +31,7 @@ jobs:
       event: ${{ steps.gate.outputs.event }}
       bench_matrix: ${{ steps.bench-matrix.outputs.bench_matrix }}
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332
       - name: Resolve benchmark CI mode
@@ -61,7 +61,7 @@ jobs:
       CHUTORO_BENCH_HNSW_RECALL_REPORT: '0'
       CHUTORO_BENCH_HNSW_CLUSTER_QUALITY_REPORT: '0'
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332
       - name: Run benchmark discovery smoke check
@@ -93,7 +93,7 @@ jobs:
       CHUTORO_BENCH_HNSW_RECALL_REPORT: '0'
       CHUTORO_BENCH_HNSW_CLUSTER_QUALITY_REPORT: '0'
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           fetch-depth: 2
       - name: Setup Rust

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       CARGO_TERM_COLOR: always
       BUILD_PROFILE: debug
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332
       - name: Dense stable SIMD gating
@@ -60,7 +60,7 @@ jobs:
     env:
       CARGO_TERM_COLOR: always
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - name: Install Verus
         run: scripts/install-verus.sh
         env:

.github/workflows/nightly-kani.yml

@@ -24,7 +24,7 @@ jobs:
     env:
       CARGO_TERM_COLOR: always
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           ref: main
       - name: Setup Rust

.github/workflows/nightly-portable-simd.yml

@@ -25,7 +25,7 @@ jobs:
       CARGO_TERM_COLOR: always
       RUSTFLAGS: -D warnings
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - name: Decide whether to run nightly portable SIMD
         id: gate
         env:

.github/workflows/property-tests.yml

@@ -39,7 +39,7 @@ jobs:
       CHUTORO_HNSW_PBT_MIN_MAX_CONNECTIONS: "12"
     steps:
       - &checkout_step
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - &setup_rust_step
         name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332