feat: add changelog_skip_prereleases setting to omit prerelease entries from changelog#1985

bearomorphism wants to merge 2 commits intocommitizen-tools:mastercommitizen-tools/commitizen:masterfrom

bearomorphism:fix/1218-changelog-skip-prereleasesbearomorphism/commitizen:fix/1218-changelog-skip-prereleasesCopy head branch name to clipboard