Use the VERSION file from the PR branch in push-charts-ci.yaml

The Push Chart CI workflow uses the default branch when running
print-chart-version.sh. Other workflows checkout the PR branch for the same script.
The print-chart-version.sh script uses the VERSION file at the repo root to
determine the tags of the Helm charts that are pushed, which means that we
were seeing inconsistencies between the chart tag that was being pushed and the
chart tags that other workflows were looking for.

This change to the Push Chart CI workflow copies the VERSION file from the PR
branch into the location that print-chart-version.sh expects, so that all
workflows are now getting the VERSION from the same file.

Signed-off-by: Feroz Salam <[email protected]>

.github/workflows/push-chart-ci.yaml

@@ -60,7 +60,6 @@ jobs:
         mkdir -p ../cilium-default-branch/contrib/scripts
         if [[ -f ./contrib/scripts/print-chart-version.sh ]]; then
           cp ./contrib/scripts/print-chart-version.sh ../cilium-default-branch/contrib/scripts
-          cp VERSION ../cilium-default-branch
         else
           echo "./contrib/scripts/print-chart-version.sh missing. Perhaps it needs to be backported to your target branch?"
           exit 1
@@ -100,6 +99,8 @@ jobs:
       run: |
         set -o pipefail
         set -e
+        # print-chart-version.sh expects the VERSION file in a specific location, so copy it there
+        cp VERSION ../cilium-default-branch
         echo "chart_version=$(../cilium-default-branch/contrib/scripts/print-chart-version.sh)" | tee -a $GITHUB_OUTPUT
 
   push-charts: