ci: update deprecated action versions

actions/checkout v4 runs on Node.js 20, which GitHub deprecates in
June 2026; move to v6. codeql-action moves to v4 and
create-pull-request to v8 for the same reason.

Author: matejk

.github/workflows/build-centos8.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

.github/workflows/build-debian11.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

.github/workflows/build-debian12.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

.github/workflows/build-fedora28.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

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

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

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

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

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

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Build LTFS

.github/workflows/codeql-analysis.yml

@@ -39,13 +39,13 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         submodules: recursive
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@v4
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -56,7 +56,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     #- name: Autobuild
-    #  uses: github/codeql-action/autobuild@v2
+    #  uses: github/codeql-action/autobuild@v4
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -75,4 +75,4 @@ jobs:
        make
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@v4

.github/workflows/update-uthash.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -36,7 +36,7 @@ jobs:
           
       - name: Create Pull Request
         if: steps.check_changes.outputs.changed == 'true'
-        uses: peter-evans/create-pull-request@v5
+        uses: peter-evans/create-pull-request@v8
         with:
           commit-message: 'chore: update uthash.h from upstream'
           title: 'chore: update uthash.h from upstream'