[skip ci] Bump actions/checkout from v4 to v6

Skip CI is intentional,
#878 proved to be OK.

Author: RazvanLiviuVarzaru

.github/workflows/bbm_build_container.yml

@@ -25,7 +25,7 @@ jobs:
           - 5000:5000
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Enable Production release - no rebuild
         run: echo "MAIN_BRANCH=true" >> $GITHUB_ENV

.github/workflows/bbm_deploy.yml

@@ -45,7 +45,7 @@ jobs:
   check:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Check master.cfg files for DEV container
         run: ./validate_master_cfg.sh -e DEV
@@ -96,7 +96,7 @@ jobs:
             echo "ENV_FILE=.env" >>$GITHUB_ENV
           fi
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: prepare
         env:

.github/workflows/bbw_build_container_rhel.yml

@@ -72,7 +72,7 @@ jobs:
         run: echo "MAIN_BRANCH=true" >> $GITHUB_ENV
         if: github.ref == 'refs/heads/main'
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up env vars
         run: |
           set -vx

.github/workflows/bbw_build_container_template.yml

@@ -70,7 +70,7 @@ jobs:
         if: github.ref == 'refs/heads/main'
 
         #runs always.
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up env vars
         run: |
           set -vx

.github/workflows/build-srpm.yml

@@ -97,7 +97,7 @@ jobs:
         run: echo "MAIN_BRANCH=true" >> $GITHUB_ENV
         if: github.ref == 'refs/heads/main'
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up env vars
         run: |
           set -vx

.github/workflows/eco_containers.yml

@@ -32,7 +32,7 @@ jobs:
       WORKDIR: eco_build_images
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       #      - name: Set up QEMU
       #        uses: docker/setup-qemu-action@v2
       - name: Check Dockerfile with hadolint

.github/workflows/pre-commit.yml

@@ -9,7 +9,7 @@ jobs:
   pre-commit:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       #//TEMP we need to check only modified files WRT main
       - name: Install requirements (apt)
         run: |

.github/workflows/unittests.yml

@@ -14,7 +14,7 @@ jobs:
   pre-commit:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       #//TEMP we need to check only modified files WRT main
       - name: Install requirements (apt)
         run: |