fix: Implemented IPv4 address validation for dest_address in the reso…

…urce zia_firewall_filtering_rule

.github/pull_request_template.md

@@ -0,0 +1,39 @@
+Provide a general summary of your changes in the title above. You should
+remove this overview, any sections and any section descriptions you
+don't need below before submitting. There isn't a strict requirement to
+use this template if you can structure your description and still cover
+these points.
+
+## Description
+
+Describe your changes in detail through motivation and context. Why is
+this change required? What problem does it solve? If it fixes an open
+issue, link to the issue using GitHub's closing issues keywords[1].
+
+## Has your change been tested?
+
+Explain how the change has been tested and what you ran to confirm your
+change affects other parts of the code. Automated tests are generally
+expected and changes without tests should explain why they aren't
+required.
+
+## Screenshots (if appropriate):
+
+## Types of changes
+
+What sort of change does your code introduce/modify?
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+
+## Checklist:
+
+- [ ] My code follows the code style of this project.
+- [ ] My change requires a change to the documentation.
+- [ ] I have updated the documentation accordingly.
+- [ ] I have added tests to cover my changes.
+- [ ] All new and existing tests passed.
+- [ ] This change is using publicly documented and stable APIs.
+
+[1]: https://help.github.com/articles/closing-issues-using-keywords/