Update actions/checkout digest to b4ffde6

Author: renovate[bot]

.github/workflows/example.yml

@@ -9,7 +9,7 @@ jobs:
   hello:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: ./
         id: check
         with:
@@ -20,7 +20,7 @@ jobs:
   eyes:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: ./
         id: check
         with:
@@ -34,7 +34,7 @@ jobs:
   rocket:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: ./
         id: check
         with:

.github/workflows/pull_request.generated.yml

@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
     - name: Set Node.js 16.x
       uses: actions/setup-node@v3
       with:
@@ -41,7 +41,7 @@ jobs:
     name: "Build and release action"
     needs: [build]
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           fetch-depth: 0
           persist-credentials: true

.github/workflows/release.generated.yml

@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
     - name: Set Node.js 16.x
       uses: actions/setup-node@v3
       with:
@@ -41,7 +41,7 @@ jobs:
     name: "Build and release action"
     needs: [build]
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           fetch-depth: 0
           persist-credentials: true