Merge freeze into master (saltstack#61310)

* Redirect imports of ``salt.ext.six`` to ``six``

Fixes saltstack#60966

* Latest changelog update for 3004

* Handle signals and properly exit, instead of raising exceptions.

This was introduced in 26fcda5

Fixes saltstack#60391
Fixes saltstack#60963

* Add test for saltstack#61003

* Fix saltstack#61003

Restored the previously shifted check for version_to_remove in
old[target]. This had been extracted along with the correctly extracted
double pkg_params[target] lookup, but that lost the `target in old`
guard.

Putting the check back here prevents KeyError when looking for a
non-existent target in `old`.

* Handle various architecture formats in aptpkg module

* Write file even if does not exist

* only run test on debian based platforms

* remove extra space for arch

* convert pathlib to string for pkgrepo test

* Use temporary files first then copy to sources files

* fixes saltstack#59182 fix handling of duplicate keys in rest_cherrypy data

* added changelog

* remove log messages to prevent leaks of sensitive info

* Reverting changes in PR saltstack#60150. Updating installed and removed functions to return changes when test=True.

* Adding changelog.

* Add a test and fix for extra-filerefs

* Do not break master_tops for minion with version lower to 3003

* Add changelog file

* Add extra comment to clarify discussion

* Update changelog file

* Add deprecated changelog

* Assert that the command didn't finish

Refs saltstack#60972

* Always restore signals, even when exceptions occur

* Reset signal handlers before starting the process

* Make sure that the `ProcessManager` doesn't always ignore signals

* Provide valid default value for bootstrap_delay

* Update changelog for 3004

* Update changelog and release notes for 3004

* Add PR 61020 to changelog

* Update release notes index file and create 3005 file

* Update docs

* bad merge from master, redoing the PR for adding the Deltaproxy documentation.

* Adding doc/ref/configuration/delta_proxy.rst.

* cleaning up this paragraph, adding in network administrators in addition to system administrators.

Co-authored-by: Pedro Algarvio <pedro@algarvio.me>
Co-authored-by: ScriptAutomate <derek@icanteven.io>
Co-authored-by: Wayne Werner <wwerner@vmware.com>
Co-authored-by: Megan Wilhite <mwilhite@vmware.com>
Co-authored-by: nicholasmhughes <nicholasmhughes@gmail.com>
Co-authored-by: Daniel A. Wozniak <dwozniak@saltstack.com>
Co-authored-by: Pablo Suárez Hernández <psuarezhernandez@suse.com>
Co-authored-by: Alyssa Rock <arock@saltstack.com>
Co-authored-by: Twangboy <shane.d.lee@gmail.com>