fixup! Add custom action and unified Linux build

Author: mshabunin

.github/workflows/OCV-PR-Linux.yaml

@@ -20,25 +20,25 @@ concurrency:
 
 jobs:
 
-  branch_eval:
-    runs-on: ubuntu-latest
-    outputs:
-      branches: ${{ steps.determine-branches.outputs.branches }}
-    steps:
-        - id: determine-branches
-          shell: bash
-          run: |
-            if [ "${{ github.event.repository.name == 'ci-gha-workflow' }}" = "true" ] ; then
-              echo "branches=[ '4.x', '5.x' ]" >> "$GITHUB_OUTPUT"
-            else
-              echo "branches=[ '${{ github.base_ref }}' ]" >> "$GITHUB_OUTPUT"
-            fi
+  # branch_eval:
+  #   runs-on: ubuntu-latest
+  #   outputs:
+  #     branches: ${{ steps.determine-branches.outputs.branches }}
+  #   steps:
+  #       - id: determine-branches
+  #         shell: bash
+  #         run: |
+  #           if [ "${{ github.event.repository.name == 'ci-gha-workflow' }}" = "true" ] ; then
+  #             echo "branches=[ '4.x', '5.x' ]" >> "$GITHUB_OUTPUT"
+  #           else
+  #             echo "branches=[ '${{ github.base_ref }}' ]" >> "$GITHUB_OUTPUT"
+  #           fi
 
   Ubuntu:
     # runs-on: opencv-ru-lin-riscv
     runs-on: opencv-cn-lin-x86-64
-    needs:
-      - branch_eval
+    # needs:
+    #   - branch_eval
     strategy:
       # Debugging
       # fail-fast: true
@@ -50,7 +50,8 @@ jobs:
           - '24.04'
           - '22.04'
           - '20.04'
-        branch: ${{ fromJSON(needs.branch_eval.outputs.branches )}}
+        #branch: ${{ fromJSON(needs.branch_eval.outputs.branches )}}
+        branch: [ ${{ github.event.repository.name == 'ci-gha-workflow' && '''4.x'', ''5.x''' || github.base_ref }} ]
         include:
           - version: '24.04'
             image: '24.04:20241031'