Update dependency Flask to v2.3.3#978

red-hat-konflux[bot] wants to merge 2 commits intorelease-v1.15openshift-knative/kn-plugin-func:release-v1.15from

konflux/mintmaker/release-v1.15/flask-2.xopenshift-knative/kn-plugin-func:konflux/mintmaker/release-v1.15/flask-2.xCopy head branch name to clipboard