update: Git Checkout to newest version

Author: XV02

.github/workflows/build-centos8.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Build LTFS
         id: build
         uses: LinearTapeFileSystem/CentOS8-Build@v1.6

.github/workflows/build-fedora28.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Build LTFS
         id: build
         uses: LinearTapeFileSystem/Fedora28-Build@v1.0

.github/workflows/build-ubuntu-bionic.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Build LTFS
         id: build
         uses: LinearTapeFileSystem/Ubuntu1804-Build@v1.0

.github/workflows/build-ubuntu-focal.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Build LTFS
         id: build
         uses: LinearTapeFileSystem/Ubuntu2004-Build@v1.1

.github/workflows/build-ubuntu-xeneal.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Build LTFS
         id: build
         uses: LinearTapeFileSystem/Ubuntu1604-Build@v1.0