this is required if someone is using Poco::Crypto, see the following
extract from poco's cmake files:
```cmake
include(CMakeFindDependencyMacro)
find_dependency(PocoFoundation)
find_dependency(OpenSSL REQUIRED COMPONENTS Crypto)
include("${CMAKE_CURRENT_LIST_DIR}/PocoCryptoTargets.cmake")
```
continuation of #109595
pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.
python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:
- built on NixOS
- ran `/nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0/bin/cpspc -h` got 0 exit code
- ran `/nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0/bin/cpspc --help` got 0 exit code
- ran `/nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0/bin/cpspc help` got 0 exit code
- ran `/nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0/bin/f2cpsp -h` got 0 exit code
- ran `/nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0/bin/f2cpsp --help` got 0 exit code
- ran `/nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0/bin/f2cpsp help` got 0 exit code
- found 1.9.0 with grep in /nix/store/n66s6hq39pqk83sn77pz2ff02m642hzs-poco-1.9.0
Semi-automatic update. These checks were performed:
- built on NixOS
- ran `/nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1/bin/cpspc -h` got 0 exit code
- ran `/nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1/bin/cpspc --help` got 0 exit code
- ran `/nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1/bin/cpspc help` got 0 exit code
- ran `/nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1/bin/f2cpsp -h` got 0 exit code
- ran `/nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1/bin/f2cpsp --help` got 0 exit code
- ran `/nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1/bin/f2cpsp help` got 0 exit code
- found 1.8.1 with grep in /nix/store/i0mvrxm8vlgilmmkqrlp33g122iw5zlm-poco-1.8.1
cc "@orivej"
