apacheHttpd: 2.4.29 -> 2.4.32

Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:

- built on NixOS
- ran `/nix/store/jqy7a2lm1zlq16al63hl6v66hvlgvw6i-apache-httpd-2.4.32/bin/httpd -V` and found version 2.4.32
- ran `/nix/store/jqy7a2lm1zlq16al63hl6v66hvlgvw6i-apache-httpd-2.4.32/bin/httpd -v` and found version 2.4.32
- ran `/nix/store/jqy7a2lm1zlq16al63hl6v66hvlgvw6i-apache-httpd-2.4.32/bin/apachectl -V` and found version 2.4.32
- ran `/nix/store/jqy7a2lm1zlq16al63hl6v66hvlgvw6i-apache-httpd-2.4.32/bin/apachectl -v` and found version 2.4.32
- found 2.4.32 with grep in /nix/store/jqy7a2lm1zlq16al63hl6v66hvlgvw6i-apache-httpd-2.4.32
- directory tree listing: https://gist.github.com/70eb713ae0f87b3472cac40abc006a26