Enable integration tests for the crypto/ namespace (#26684)

Crypto namespace contains the openssl modules. It has no integration
testing as of now.

This commits aims to add integration tests for the crypto namespace.
This will make it easier to spot breaking changes in the future.

This tests currently apply to:

  * openssl_privatekey
  * openssl_publickey
  * openssl_csr

test/integration/targets/openssl_publickey/aliases

@@ -0,0 +1 @@
+posix/ci/group1

test/integration/targets/openssl_publickey/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - setup_openssl

test/integration/targets/openssl_publickey/tasks/main.yml

@@ -0,0 +1,13 @@
+- block:
+    - name: Generate privatekey
+      openssl_privatekey:
+        path: '{{ output_dir }}/privatekey.pem'
+
+    - name: Generate publickey
+      openssl_publickey:
+        path: '{{ output_dir }}/publickey.pub'
+        privatekey_path: '{{ output_dir }}/privatekey.pem'
+
+    - import_tasks: ../tests/validate.yml
+
+  when: pyopenssl_version.stdout|version_compare('16.0.0', '>=')

test/integration/targets/openssl_publickey/tests/validate.yml

@@ -0,0 +1,12 @@
+- name: Validate public key (test - privatekey modulus)
+  shell: 'openssl rsa -noout -modulus -in {{ output_dir }}/privatekey.pem | openssl md5'
+  register: privatekey_modulus
+
+- name: Validate public key (test - publickey modulus)
+  shell: 'openssl rsa -pubin -noout -modulus < {{ output_dir }}/publickey.pub  | openssl md5'
+  register: publickey_modulus
+
+- name: Validate public key (assert)
+  assert:
+    that:
+      - publickey_modulus.stdout == privatekey_modulus.stdout