Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/rebar3/versions

Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/symengine/versions

The attribute CSS::Minifier::XS module was likely misnamed, this commit changes
the attribute name from CSSMinifierXP to CSSMinifierXS.

Affected dependency: servers/rt

Changed upstream URL to GitHub. The latest release is not on BitBucket
and the web site points to GitHub.

Since GO 1.13, the go command caches the lookup results and tiles in
$GOPATH[1], hence making the module directory non-deterministic.

Use the `-f` flag when removing /sumdb, for compatibility with Go 1.12
because in that version does not exists that directory.

[1] https://go.googlesource.com/proposal/+/master/design/25530-sumdb.md#command-client

Source for the change of upstream url:
* zdohnal/system-config-printer is a fork of
OpenPrinting/system-config-printer
* This is what fedora did:
https://apps.fedoraproject.org/packages/system-config-printer/sources/spec/
(see changelog for  1.5.11-17)

GDM now specifies ordering between `plymouth-quit` and `display-manager`:
9be5321

This causes an ordering cycle between GDM and plymouth-quit which can result in
systemd breaking GDM:
```
plymouth-quit.service: Job display-manager.service/start deleted to break
                       ordering cycle starting with plymouth-quit.service/start
```

Not sure how often this triggers, as I've run my system with plymouth and
9be5321 without any issues. But I did catch a VM doing this.

NOTE: I also tried to remove the ordering in GDM to see if plymouth managed to
live longer, but it didn't seem to help. So I opted to stick as close to
upstream (upstream GDM specifies ordering, but plymouth does not).

https://www.openwall.com/lists/musl/2019/10/13/5

Apparently 1.1.23 never made it to nixpkgs proper (?!), see:
https://git.musl-libc.org/cgit/musl/commit/?id=b07d45eb01e900f0176894fdedab62285f5cb8be

(sorry I apparently dropped the ball here)

Add the RPCEPCService perl package, and its
dependency DataSExpression.

This session would fail to start because we didn't have it in systemd.packages
(as we've switched to systemd gnome-session).

Haven't tested custom sessions.

delv is provided as a replacement for dig with better DNSSEC support.

Changelog: https://github.com/prometheus/prometheus/releases/tag/v2.13.1

This fixes an issue with a recent addition of a config file
check in c28ded3.

Previously it was possible to supply a path as a string
to `configFile`. Now it will fail checking the config file
during evaluation of the module due to sandboxing.

A toggle to disable the check, more informative log messages
and handling for various configFile values are added.

oracle-instantclient: Fix path for darwin downloads

Changelog:
+ https://github.com/hashicorp/terraform/releases/tag/v0.12.11
+ https://github.com/hashicorp/terraform/releases/tag/v0.12.12

This reverts commit 2ee14c3.

This caused the initializers directory to be cleaned out while gitlab
was running in some instances. We clean out the directory on the
preStart stage already, so ensuring existance and permissions should
suffice.

prometheus-blackbox-exporter: coercing cfg to path

dnsutils: add 'delv' binary, remove obsolete sigchase

oxipng: 2.2.2 -> 2.3.0

ephemeral: 5.4.0 -> 6.0.0