Add ansible-core to developer_setup install docs

`ansible-galaxy` is required for `rake db:seed` and is provided by the
`ansible-core` apt and rpm packages.

Author: agrare

developer_setup.md

@@ -29,9 +29,9 @@
 
    |      |     |
    | ---- | --- |
-   | dnf  | `sudo dnf -y install @c-development libffi-devel postgresql-devel libxml2-devel libcurl-devel cmake python libssh2-devel` |
-   | yum  | `sudo yum -y install @development libffi-devel postgresql-devel libxml2-devel libcurl-devel cmake python libssh2-devel` |
-   | apt  | `sudo apt -y install build-essential libffi-dev libpq-dev libxml2-dev libcurl4-openssl-dev cmake python libssh2-1-dev` |
+   | dnf  | `sudo dnf -y install @c-development libffi-devel postgresql-devel libxml2-devel libcurl-devel cmake python libssh2-devel ansible-core` |
+   | yum  | `sudo yum -y install @development libffi-devel postgresql-devel libxml2-devel libcurl-devel cmake python libssh2-devel ansible-core` |
+   | apt  | `sudo apt -y install build-essential libffi-dev libpq-dev libxml2-dev libcurl4-openssl-dev cmake python libssh2-1-dev ansible-core` |
    | brew | `brew install cmake libssh2 iproute2mac ansible` |
 
    On Fedora 41+  you have to also run `sudo dnf install -y openssl-devel-engine`