Update actions/checkout digest to b4ffde6

.github/workflows/docker-open5gs.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       with:
         fetch-depth: 0
     - name: Get the version

.github/workflows/docker-srsran.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       with:
         fetch-depth: 0
     - name: Get the version

.github/workflows/docker-ueransim.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       with:
         fetch-depth: 0
     - name: Get the version

.github/workflows/pypi.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       with:
         fetch-depth: 0
     - name: Build core package

.github/workflows/secrets-scan.yml

@@ -6,7 +6,7 @@ jobs:
   scan:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
     - name: scan
       run: |
         export DEBIAN_FRONTEND=noninteractive && \

.github/workflows/test.yaml

@@ -6,7 +6,7 @@ jobs:
   test:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       with:
         fetch-depth: 0
     - name: shell_test
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout repo
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: setup_int_tests
         run: |
           ./blue/tests/install_test.sh && \