* Avoid aiodns resolver memory leak
In certain cases, the aiodns resolver can leak memory. This also
leads to Fatal `Python error… ffi.from_handle()`. This addresses
the issue by ensuring that the resolver is properly closed
when it is no longer needed.
* Address coderabbitai feedback
* Fix pytest
* Fix pytest
* Finish out effort of adding and enabling blockbuster
* Skip getting addon file size until securetar fixed
* Fix test for devcontainer and blocking I/O
* Fix docker fixture and load_config to post_init
* Add blockbuster library and find I/O from unit tests
* Fix lint and test issue
* Fixes from feedback
* Avoid modifying webapp object in executor
* Split su options validation and only validate timezone on change
* Load resolution evaluation, check and fixups early
Before #5652, these modules were loaded in the constructor, hence early
in `initialize_coresys()`. Moving them late actually exposed an issue
where NetworkManager connectivity setter couldn't get the
`connectivity_check` evaluation, leading to an exception early in
bootstrap.
Technically, it might be safe to load the resolution modules only in
`Core.connect()`, however then we'd have to load them separately for
pytest. Let's go conservative and load them the same place where they
got loaded before #5652.
* Load resolution modules in a single executor call
* Fix pytest
* Create issue for detected DNS server problem
* Validate behavior on restart as well
* tls:// not supported, remove check
* Move DNS server checks into resolution checks
* Revert all changes to plugins.dns
* Run DNS server checks if affected
* Mock aiodns query during all checks tests
