Fix to avoid caching out-of-date images on clusters in e2e testing

* Ensures that the ImagePullPolicy is set to Always in the bundle csv to
  avoid target clusters retaining out-of-date cached camel-k images

.github/actions/e2e-kubernetes/exec-tests.sh

@@ -102,6 +102,11 @@ export KAMEL_INSTALL_REGISTRY=${REGISTRY_PULL_HOST}
 export KAMEL_INSTALL_REGISTRY_INSECURE=${REGISTRY_INSECURE}
 export KAMEL_INSTALL_OPERATOR_IMAGE=${CUSTOM_IMAGE}:${CUSTOM_VERSION}
 
+# Will only have an effect if olm=false
+# since, for OLM, the csv determines the policy
+# (see kamel-build-bundle/build-bundle-image.sh)
+export KAMEL_INSTALL_OPERATOR_IMAGE_PULL_POLICY="Always"
+
 export CAMEL_K_TEST_IMAGE_NAME=${CUSTOM_IMAGE}
 export CAMEL_K_TEST_IMAGE_VERSION=${CUSTOM_VERSION}
 export CAMEL_K_TEST_SAVE_FAILED_TEST_NAMESPACE=${SAVE_FAILED_TEST_NS}

.github/actions/kamel-build-bundle/build-bundle-image.sh

@@ -86,6 +86,19 @@ if [ -z "${REGISTRY_PULL_HOST}" ]; then
   exit 1
 fi
 
+#
+# Using a custom single cluster can allow for use-case that old camel-k images are cached
+# (see https://cloud.redhat.com/blog/image-garbage-collection-in-openshift). This is not an
+# issue on ephemeral clusters like kind.
+# Therefore, need to edit the bundle CSV to ensure the ImagePullPolicy of the camel-k image is
+# set to "Always" to mandate that the new image is always pulled.
+#
+# Use kustomize to patch the deployment resource
+#
+pushd config/manager > /dev/null
+kustomize edit add patch --path patch-image-pull-policy-always.yaml --kind Deployment
+popd
+
 #
 # Build with the PUSH host to ensure the correct image:tag
 # for docker to push the image.

.github/actions/kamel-preflight-test/preflight-test.sh

@@ -121,7 +121,8 @@ export KAMEL_INSTALL_REGISTRY_INSECURE=${REGISTRY_INSECURE}
 export KAMEL_INSTALL_OPERATOR_IMAGE=${CUSTOM_IMAGE}:${CUSTOM_VERSION}
 
 # Will only have an effect if olm=false
-# since, for OLM, the csv determine the policy
+# since, for OLM, the csv determines the policy.
+# (see kamel-build-bundle/build-bundle-image.sh)
 export KAMEL_INSTALL_OPERATOR_IMAGE_PULL_POLICY="Always"
 
 #