Add zypper skip post errors feature (#9973)

* Add zypper skip post errors feature

* Add feature to handle zypper return code 107 with skip_post_errors (default: false).
* Add integration test to verify the skip_post_errors flag.
* Add changelog fragment

Issue: #9972
Issue-Ref: https://github.com/ansible-collections/community.general/issues/9972

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/modules/zypper.py

* Update changelogs/fragments/9972-zypper-skip-post-errors.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update tests/integration/targets/zypper/tasks/zypper.yml

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>
Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

tests/integration/targets/zypper/tasks/zypper.yml

@@ -255,6 +255,91 @@
     that:
      - "stat_result.stat.exists == true"
 
+# Build and install an empty rpm with error in post script
+- name: uninstall post_error
+  zypper:
+    name: post_error
+    state: removed
+
+- name: install rpmbuild
+  zypper:
+    name: rpmbuild
+    state: present
+
+- name: clean zypper RPM cache
+  file: 
+    name: /var/cache/zypper/RPMS
+    state: absent
+
+- name: create directory
+  file:
+    path: "{{ remote_tmp_dir | expanduser }}/zypper2"
+    state: directory
+
+- name: copy spec file
+  copy:
+    src: post_error.spec
+    dest: "{{ remote_tmp_dir | expanduser }}/zypper2/post_error.spec"
+
+- name: build rpm
+  command: |
+    rpmbuild -bb \
+    --define "_topdir {{remote_tmp_dir | expanduser }}/zypper2/rpm-build"
+    --define "_builddir %{_topdir}" \
+    --define "_rpmdir %{_topdir}" \
+    --define "_srcrpmdir %{_topdir}" \
+    --define "_specdir {{remote_tmp_dir | expanduser}}/zypper2" \
+    --define "_sourcedir %{_topdir}" \
+    {{ remote_tmp_dir }}/zypper2/post_error.spec
+  register: rpm_build_result
+
+- name: install post_error rpm with skip_post_errors
+  zypper:
+    name: "{{ remote_tmp_dir | expanduser }}/zypper2/rpm-build/noarch/post_error-1-0.noarch.rpm"
+    disable_gpg_check: true
+    skip_post_errors: true
+  register: zypper_result
+
+- name: check post_error rpm
+  shell: rpm -q post_error
+  failed_when: false
+  register: rpm_result
+
+- name: verify installation of post_error
+  assert:
+    that:
+        - "zypper_result.rc == 0"
+        - "zypper_result.changed"
+        - "rpm_result.rc == 0"
+
+- name: uninstall post_error
+  zypper:
+    name: post_error
+    state: removed
+
+- name: install post_error rpm without skip_post_errors
+  zypper:
+    name: "{{ remote_tmp_dir | expanduser }}/zypper2/rpm-build/noarch/post_error-1-0.noarch.rpm"
+    disable_gpg_check: true
+  register: zypper_result
+  ignore_errors: true
+
+- name: check post_error rpm
+  shell: rpm -q post_error
+  failed_when: false
+  register: rpm_result
+
+- name: verify installation of post_error
+  assert:
+    that:
+        - "zypper_result.rc == 107"
+        - "not zypper_result.changed"
+        - "rpm_result.rc == 0"
+
+- name: uninstall post_error
+  zypper:
+    name: post_error
+    state: removed
 
 # test simultaneous remove and install using +- prefixes