fix: release process (#1059)

* fix: Exclude Dockerfile from copying to main branch on release

Signed-off-by: Anatolii Bazko <abazko@redhat.com>

* Use stable channel to test in release PR

Signed-off-by: Anatolii Bazko <abazko@redhat.com>

.github/bin/minikube/test-olm.sh

@@ -25,7 +25,7 @@ trap "catchFinish" EXIT SIGINT
 
 runTest() {
   local channel=next
-  if [[ $(git rev-parse --abbrev-ref HEAD) =~ release$ ]]; then
+  if [[ $GITHUB_HEAD_REF =~ release$ ]]; then
     channel=stable
   fi
 

make-release.sh

@@ -285,7 +285,7 @@ createPRToMainBranch() {
   resetChanges main
   local tmpBranch="copy-csv-to-main"
   git checkout -B $tmpBranch
-  git diff refs/heads/${BRANCH}...refs/heads/${RELEASE_BRANCH} ':(exclude)config/manager/manager.yaml' | git apply -3
+  git diff refs/heads/${BRANCH}...refs/heads/${RELEASE_BRANCH} ':(exclude)config/manager/manager.yaml' ':(exclude)Dockerfile' | git apply -3
   if git status --porcelain; then
     git add -A || true # add new generated CSV files in olm/ folder
     git commit -am "ci: Copy "$RELEASE" csv to main" --signoff