Release version 3.2.0

Shortlog of commits since last release:

    Bruno Rocha (4):
          Ignore docs build without a tag
          Cancel any running CI job when a Push is made to an existing PR or branch (dynaconf#952)
          Fix dynaconf#959 cli get will exit code 1 in case of KeyError. (dynaconf#960)
          add tech preview note to inspect docs (dynaconf#961)

    Pedro Pessoa (9):
          Docs - Update envvar.md custom token e.g. to use add_converter (dynaconf#941)
          Feature - Inspect and CLI (dynaconf#939)
          Fix - Template substitution with variable update (dynaconf#944)
          Assert dynaconf#658 works (dynaconf#945)
          fix infinite recursions in special case of django app dynaconf#867 (dynaconf#947)
          Fix - Django functions with `add_converter` (dynaconf#951)
          Fix hooks not re-running on reload dynaconf#850 (dynaconf#953)
          update vault and redis warning recommendations. fix dynaconf#950 (dynaconf#954)
          Fix - Enable merge equal False (dynaconf#957)