Update CI

.github/workflows/ci.yml

@@ -1,7 +1,9 @@
 on:
-  push:
-    branches: [ staging, trying, master ]
-  pull_request:
+  push: # Run CI for all branches except GitHub merge queue tmp branches
+    branches-ignore:
+    - "gh-readonly-queue/**"
+  pull_request: # Run CI for PRs on any branch
+  merge_group: # Run CI for the GitHub merge queue
 
 name: CI
 
@@ -21,7 +23,7 @@ jobs:
             TARGET: x86_64-unknown-linux-gnu
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}

.github/workflows/rustfmt.yml

@@ -1,7 +1,9 @@
 on:
-  push:
-    branches: [ staging, trying, master ]
-  pull_request:
+  push: # Run CI for all branches except GitHub merge queue tmp branches
+    branches-ignore:
+    - "gh-readonly-queue/**"
+  pull_request: # Run CI for PRs on any branch
+  merge_group: # Run CI for the GitHub merge queue
 
 name: Code formatting check
 
@@ -10,7 +12,7 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt