feat: update docker and pipeline

- Add workflow to publish to GHCR
- Add workflow to build Docker image
- Add zap2xmlrc config example
- Update Dockerfile to run continuously

.github/pull_request_template.md

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+<!-- Please use Conventional Commits to label your title -->
+<!-- https://www.conventionalcommits.org/en/v1.0.0/ -->
+<!-- Example: feat: allow provided config object to extend other configs  -->
+
+### Description
+
+<!-- Fixes #(issue) -->
+<!-- Please also include relevant motivation and context. -->
+
+### Testing
+
+<!-- Please describe the tests that you ran to verify your changes. -->
+<!-- Provide instructions so we can reproduce. -->
+<!-- Please also list any relevant details for your test configuration -->
+
+### New dependencies
+
+<!-- List any dependencies that are required for this change. -->
+<!-- Otherwise, delete section. -->