moved post-installation reboots to task blocks from each software's associated handler to reduce power cycle; fixed semantic errors with varables and fixed repository addition issues

roles/init-server/tasks/contingent/pkg/rustup.yml

@@ -23,6 +23,6 @@
     state: link
   loop:
     - rustup
-- name: Reboot machine for shell environment change
-  ansible.builtin.reboot:
-    msg: Rebooting machine
+# - name: Reboot machine for shell environment change
+#   ansible.builtin.reboot:
+#     msg: Rebooting machine