chore(deps): update flume requirement from 0.11 to 0.12

---
updated-dependencies:
- dependency-name: flume
  dependency-version: 0.12.0
  dependency-type: direct:production
...

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

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
     name: Run tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install Rust stable
         uses: dtolnay/rust-toolchain@stable
         with:
@@ -39,7 +39,7 @@ jobs:
     name: "Lint"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install Rust nightly
         uses: dtolnay/rust-toolchain@stable
         with:

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Install Rust toolchain
@@ -43,7 +43,7 @@ jobs:
       cancel-in-progress: false
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Install Rust toolchain

Cargo.toml

@@ -15,7 +15,7 @@ exclude = ["flake.nix", "flake.lock", ".envrc", "cliff.toml", "release-plz.toml"
 
 [dependencies]
 thiserror = "2.0"
-flume = { version = "0.11", optional = true }
+flume = { version = "0.12", optional = true }
 crossbeam-channel = { version = "0.5", optional = true }
 arc-swap = "1.7.1"