Sync repo templates ⚙

Sync with coreos/repo-templates@9066203.

.github/dependabot.yml

@@ -3,6 +3,12 @@
 
 version: 2
 updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels: ["skip-notes"]
+    open-pull-requests-limit: 3
   - package-ecosystem: cargo
     directory: /
     schedule:

.github/workflows/rust.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@v1
         with:
@@ -37,15 +37,12 @@ jobs:
         run: cargo build --all-targets
       - name: cargo test
         run: cargo test --all-targets
-      - name: cargo test (fs_utf8)
-        run: cargo test --features=fs_utf8
-
   tests-release-stable:
     name: Tests (release), stable toolchain
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@v1
         with:
@@ -61,7 +58,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Detect crate MSRV
         run: |
           msrv=$(cargo metadata --format-version 1 --no-deps | \
@@ -83,7 +80,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@v1
         with:
@@ -104,7 +101,7 @@ jobs:
         channel: [beta, nightly]
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@v1
         with: