Remove groupby filter to avoid bug

This patch adjusts the package installation/removal tasks to get around
a bug. Jinja2 now returns namedtuples with the groupby filter and
Ansible is unable to convert that to a usable variable data type with
AST.

Jinja2 bug: pallets/jinja#654
Ansible bug: ansible/ansible#20098
Related-Bug: 1655397
Change-Id: I3ce764bfb643bda58c4b6ad282e71c312f41465e

tasks/rhel6stig/apt.yml

@@ -104,15 +104,10 @@
 
 - name: Add or remove packages based on STIG requirements
   apt:
-    name: |
+    name: "{{ stig_packages | selectattr('enabled') | selectattr('state', 'equalto', item) | sum(attribute='packages', start=[]) }}"
-      {%- set pkg_list = [] %}
+    state: "{{ item }}"
-      {%- for package_dict in item[1] %}
-      {%- if pkg_list.extend(package_dict.packages) %}{% endif %}
-      {%- endfor %}
-      {{ pkg_list }}
-    state: "{{ item[0] }}"
   with_items:
-    - "{{ stig_packages | selectattr('enabled') | groupby('state') }}"
+    - "{{ stig_packages | selectattr('enabled') | map(attribute='state') | unique | list }}"
   tags:
     - cat1
     - auth

tasks/rhel6stig/rpm.yml

@@ -100,15 +100,10 @@
 
 - name: Add or remove packages based on STIG requirements
   yum:
-    name: |
+    name: "{{ stig_packages | selectattr('enabled') | selectattr('state', 'equalto', item) | sum(attribute='packages', start=[]) }}"
-      {%- set pkg_list = [] %}
+    state: "{{ item }}"
-      {%- for package_dict in item[1] %}
-      {%- if pkg_list.extend(package_dict.packages) %}{% endif %}
-      {%- endfor %}
-      {{ pkg_list }}
-    state: "{{ item[0] }}"
   with_items:
-    - "{{ stig_packages | selectattr('enabled') | groupby('state') }}"
+    - "{{ stig_packages | selectattr('enabled') | map(attribute='state') | unique | list }}"
   tags:
     - cat1
     - auth

tasks/rhel7stig/packages.yml

@@ -15,15 +15,10 @@
 
 - name: Add or remove packages based on STIG requirements
   package:
-    name: |
+    name: "{{ stig_packages_rhel7 | selectattr('enabled') | selectattr('state', 'equalto', item) | sum(attribute='packages', start=[]) }}"
-      {%- set pkg_list = [] %}
+    state: "{{ item }}"
-      {%- for package_dict in item[1] %}
-      {%- if pkg_list.extend(package_dict.packages) %}{% endif %}
-      {%- endfor %}
-      {{ pkg_list }}
-    state: "{{ item[0] }}"
   with_items:
-    - "{{ stig_packages_rhel7 | selectattr('enabled') | groupby('state') }}"
+    - "{{ stig_packages_rhel7 | selectattr('enabled') | map(attribute='state') | unique | list }}"
   tags:
     - cat1
     - auth