Include changelog entry from pr body if it's present.

[nerrad]

This fixes #32 so changelog is included from special formatted content in pr body if present.

Changelog

Changelog generator will now use custom changelog notes in the PR body if present.

[github-actions]

➿ Code coverage

Filename	Statements	Branches	Functions	Lines
lib/automations/todos/utils/get-todos.js	100%	100%	100%	100%
lib/automations/todos/utils/get-diff.js	100%	100%	100%	100%
lib/automations/todos/utils/parse-to-do.js	100%	97.67%	100%	100%
lib/automations/todos/utils/get-details.js	100%	90.91%	100%	100%
lib/debug.js	66.67%	50%	100%	66.67%
lib/automations/todos/utils/check-for-duplicate-issue.js	100%	100%	100%	100%
lib/automations/todos/index.js	100%	100%	100%	100%
lib/automations/todos/runner.js	88.89%	66.67%	100%	88.89%
lib/automations/todos/pull-request-handler.js	90.48%	83.33%	100%	90.48%
lib/automations/todos/templates/index.js	100%	100%	100%	100%
lib/automations/todos/templates/comment.js	100%	100%	100%	100%
lib/automations/todos/templates/issue.js	100%	100%	100%	100%
lib/automations/todos/templates/issue-from-merge.js	100%	100%	100%	100%
lib/automations/todos/templates/title-change.js	100%	100%	100%	100%
lib/automations/todos/templates/reopen-closed.js	100%	100%	100%	100%
lib/utils/index.js	100%	100%	100%	100%
lib/utils/milestones.js	85.19%	60%	100%	85.19%
lib/utils/helpers.js	85.71%	66.67%	100%	83.33%
lib/automations/todos/pull-request-merge-handler.js	91.3%	87.5%	100%	91.3%
lib/automations/todos/utils/reopen-closed.js	100%	100%	100%	100%
lib/automations/todos/push-handler.js	92%	90%	100%	92%
lib/automations/todos/issue-rename-handler.js	100%	100%	100%	100%
lib/automations/release/config/validate-config.js	92.59%	95%	100%	92.59%
lib/automations/release/index.js	100%	100%	100%	100%
lib/automations/release/runner.js	87.5%	50%	100%	87.5%
lib/automations/release/branch-create-handler.js	89.66%	80%	66.67%	91.23%
lib/automations/release/templates/index.js	83.33%	40%	75%	83.33%
lib/automations/release/utils/index.js	100%	100%	100%	100%
lib/automations/release/utils/get-release-version.js	90.91%	87.5%	100%	90.91%
lib/automations/release/utils/is-patch-release.js	100%	100%	100%	100%
lib/automations/release/utils/get-release-branch.js	62.5%	55.56%	100%	62.5%
lib/automations/release/utils/duplicate-pr-checker.js	100%	100%	100%	100%
lib/automations/release/utils/has-milestone.js	100%	100%	100%	100%
lib/utils/changelog/index.js	100%	100%	100%	100%
lib/utils/changelog/common/changelog.js	83.96%	56.1%	86.49%	83%
lib/automations/release/config/index.js	75%	0%	100%	75%
lib/automations.js	0%	100%	100%	0%
lib/if-not-fork.js	0%	0%	0%	0%
lib/utils/version.js	0%	0%	0%	0%
lib/typedefs.js	0%	100%	100%	0%
lib/index.js	0%	0%	0%	0%