ci: Update CI and migrate publish job to Actions (#455)

- Replace hecrj/setup-rust-action with actions-rs tools
- Add a Cargo Audit test step
- Move cargo publish step from Azure Pipelines to GitHub Actions
- Use cargo-publish-all to publish multiple packages at once
- Automate the creation of release notes

.github/chglog/release.yml

@@ -0,0 +1,28 @@
+style: github
+template: RELEASE.tpl.md
+info:
+  repository_url: https://github.com/starship/starship
+options:
+  commits:
+    # filters:
+    #   Type:
+    #     - feat
+    #     - fix
+    #     - perf
+    #     - refactor
+  commit_groups:
+    title_maps:
+      feat: Features
+      fix: Bug Fixes
+      perf: Performance Improvements
+      refactor: Code Refactoring
+      ci: Continuous Integration
+  header:
+    pattern: "^(\\w*)(?:\\(([\\w\\$\\.\\-\\*\\s]*)\\))?\\:\\s(.*)$"
+    pattern_maps:
+      - Type
+      - Scope
+      - Subject
+  notes:
+    keywords:
+      - BREAKING CHANGE