Refs #18503: use eProsima CI external actions [draft]

Signed-off-by: JLBuenoLopez-eProsima <[email protected]>

.github/workflows/update_dependencies.yaml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: eProsima/eProsima-CI/external/checkout@v0.3
       - id: list-branches
         run: echo "branches=$(python3 .github/workflows/list_branches.py --token ${{ secrets.RICHIPROSIMA_DDS_SUITE_TOKEN }})" >> $GITHUB_OUTPUT
 
@@ -26,7 +26,7 @@ jobs:
         tracked_branch: ${{ fromJson(needs.list-branches.outputs.branches) }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: eProsima/eProsima-CI/external/checkout@v0.3
         with:
           ref: ${{ matrix.tracked_branch }}
 
@@ -50,7 +50,7 @@ jobs:
             --output_file dds-suite.repos)" >> $GITHUB_OUTPUT
 
       - name: Create pull request
-        uses: peter-evans/create-pull-request@v4
+        uses: eProsima/eProsima-CI/external/create-pull-request@feature/mirror-create-pr-external-actions
         with:
           token: ${{ secrets.RICHIPROSIMA_DDS_SUITE_TOKEN }}
           committer: eProsima <[email protected]>