Use prettier to format yaml files in pre-commit (#6250)

Prompted by
https://github.com/astral-sh/ruff/pull/6248#discussion_r1280855848

.github/workflows/benchmark.yaml

@@ -3,12 +3,12 @@ name: Benchmark
 on:
   pull_request:
     paths:
-      - 'Cargo.toml'
-      - 'Cargo.lock'
-      - 'rust-toolchain'
-      - 'crates/**'
-      - '!crates/ruff_dev'
-      - '!crates/ruff_shrinking'
+      - "Cargo.toml"
+      - "Cargo.lock"
+      - "rust-toolchain"
+      - "crates/**"
+      - "!crates/ruff_dev"
+      - "!crates/ruff_shrinking"
 
   workflow_dispatch:
 
@@ -22,7 +22,7 @@ jobs:
     name: "Run | ${{ matrix.os }}"
     strategy:
       matrix:
-        os: [ ubuntu-latest, windows-latest ]
+        os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
 
     steps:

.github/workflows/docs.yaml

@@ -3,7 +3,7 @@ name: mkdocs
 on:
   workflow_dispatch:
   release:
-    types: [ published ]
+    types: [published]
 
 jobs:
   mkdocs:

.github/workflows/flake8-to-ruff.yaml

@@ -66,7 +66,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        target: [ x64, x86 ]
+        target: [x64, x86]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
@@ -94,7 +94,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        target: [ x86_64, i686 ]
+        target: [x86_64, i686]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
@@ -121,7 +121,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        target: [ aarch64, armv7, s390x, ppc64le, ppc64 ]
+        target: [aarch64, armv7, s390x, ppc64le, ppc64]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4

.github/workflows/playground.yaml

@@ -3,7 +3,7 @@ name: "[Playground] Release"
 on:
   workflow_dispatch:
   release:
-    types: [ published ]
+    types: [published]
 
 env:
   CARGO_INCREMENTAL: 0

.github/workflows/pr-comment.yaml

@@ -2,8 +2,8 @@ name: PR Check Comment
 
 on:
   workflow_run:
-    workflows: [ CI, Benchmark ]
-    types: [ completed ]
+    workflows: [CI, Benchmark]
+    types: [completed]
   workflow_dispatch:
     inputs:
       workflow_run_id:

.pre-commit-config.yaml

@@ -42,13 +42,13 @@ repos:
         name: cargo fmt
         entry: cargo fmt --
         language: system
-        types: [ rust ]
+        types: [rust]
         pass_filenames: false # This makes it a lot faster
       - id: ruff
         name: ruff
         entry: cargo run --bin ruff -- check --no-cache --force-exclude --fix --exit-non-zero-on-fix
         language: system
-        types_or: [ python, pyi ]
+        types_or: [python, pyi]
         require_serial: true
         exclude: |
           (?x)^(
@@ -62,5 +62,12 @@ repos:
     hooks:
       - id: black
 
+  # Prettier
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v3.0.0
+    hooks:
+      - id: prettier
+        types: [yaml]
+
 ci:
-  skip: [ cargo-fmt, dev-generate-all ]
+  skip: [cargo-fmt, dev-generate-all]