Prep v3.4.0 release

[joseph-robertson]

Pull Request Description

• Create a release branch
  • Copy changelog_dev.rst to changelog_x_y_z.rst
  • Update version and released in changelog_x_y_z.rst
  • Add changelog_x_y_z to index.rst
  • Remove change entries in changelog_dev.rst
  • Bump version in resources/buildstock.rb
  • Merge into develop
• Merge develop into main
• Create release (tag on main)

Related Pull Requests

[related PRs from different repositories]

Related Issues

[What issue(s) is the PR addressing]

Checklist

Required:

• Technical reference documentation has been updated
• Add to the changelog_dev.rst file
• No unexpected regression test changes on CI (comparison artifacts have been checked)

Optional (not all items may apply):

• Tests (and test files) have been updated
• Supporting resource files have been updated (related to resstock-estimation)
  • data dictionary
  • source report
  • options saturation
  • options_lookup
• openstudio tasks.rb update_measures has been run