There's a merged pull request on the void-packages repository

dnscrypt-proxy: update to 2.1.5, move config file
https://github.com/void-linux/void-packages/pull/45595

Description:
#### Testing the changes
- I tested the changes in this PR: **YES**

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I'm using this as an opportunity to pick up where #34517 left off. `dnscrypt-proxy` installs all of its supplemental files (that it periodically refreshes from upstream) into the same directory as its main config file. Currently this is `/etc`, which means we get a bunch of ambiguously-named files like "relays.md" polluting that directory. This change would group all those files together, at the expense of users having to move their config files to the new location.

Other changes:
* The files previously being installed as documentation were actually examples, so they are now installed with `vsconf`.
* The `generate-domains-blocklist` python helper script is now installed.
* The log directory is no longer needed after the mass switch to vlogger (#42026), so it has been removed.