fix: it is required to run this at the end of AMI build (#1109)

Co-authored-by: Sam Rose <[email protected]>

Author: samrose

ansible/playbook.yml

@@ -206,3 +206,9 @@
       shell: |
         sudo -u ubuntu bash -c ". /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh && nix profile remove osquery"
       when: stage2_nix
+
+    - name: nix collect garbage
+      become: yes
+      shell: |
+        sudo -u ubuntu bash -c ". /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh && nix-collect-garbage -d"
+      when: stage2_nix

common-nix.vars.pkr.hcl

@@ -1 +1 @@
-postgres-version = "15.6.1.108"
+postgres-version = "15.6.1.109"