build: replace custom release script with release-please (#2817)

* build: replace custom release script with release-please

* include package-name

tools/bump-python-version.sh

@@ -1,21 +0,0 @@
-#!/usr/bin/env bash
-
-# Bump the version in the setup.py files.
-
-set -u
-
-error() {
-  echo >&2 "error: $*"
-  exit 1
-}
-
-command -v sed > /dev/null || error "sed command not found!"
-
-version="$1"
-
-for setup_path in */setup.py; do
-  sed --in-place \
-    "s/version=\".*\",/version=\"$version\",/" \
-    "$setup_path"  ||
-    error "could not bump version for $setup_path!"
-done

tools/changelog.sh

@@ -1,25 +0,0 @@
-#!/usr/bin/env bash
-
-set -u
-
-error() {
-  echo >&2 "error: $*"
-  exit 1
-}
-
-command -v git > /dev/null || error "git command not found!"
-command -v git-chglog > /dev/null || error "git-chglog command not found!"
-
-changelog="CHANGELOG.md"
-tag="${tag:-$(git describe --abbrev=0 --tags || error "could not extract latest tag")}"
-
-if grep --quiet "<a name=\"$tag\"></a>" "$changelog"; then
-  error "changelog has already been generated for tag $tag!"
-fi
-
-cat <(git-chglog "$tag") "$changelog" > "$changelog.tmp"
-mv  "$changelog.tmp" "$changelog"
-
-if command -v npx > /dev/null; then
-  npx prettier --write "$changelog"
-fi