[docs] Changelogs for v0.32.1 and changelog template (#1111)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Documentation**
* Added a new changelog template with predefined sections for consistent
release documentation.
* Published a detailed changelog for version 0.32.1, outlining major
features, fixes, dependency updates, documentation changes, testing
improvements, and CI/CD enhancements.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

docs/changelogs/template.md

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+## Major Features and Improvements
+
+## Security
+
+## Fixes
+
+## Dependencies
+
+## Documentation
+
+## Development, Testing, and CI/CD

docs/changelogs/v0.32.1.md

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+## Major Features and Improvements
+
+* [postgres] Introduce new functionality for backup and restore in PostgreSQL. (@klinch0 in https://github.com/cozystack/cozystack/pull/1086)
+* [apps] Refactor resources in managed applications. (@kvaps in https://github.com/cozystack/cozystack/pull/1106)
+* [system] Make VMAgent's `extraArgs` tunable. (@lllamnyp in https://github.com/cozystack/cozystack/pull/1091)
+
+## Fixes
+
+* [postgres] Escape users and database names. (@kvaps in https://github.com/cozystack/cozystack/pull/1087)
+* [tenant] Fix monitoring agents HelmReleases for tenant clusters. (@klinch0 in https://github.com/cozystack/cozystack/pull/1079)
+* [kubernetes] Wrap cert-manager CRDs in a conditional. (@lllamnyp in https://github.com/cozystack/cozystack/pull/1076)
+* [kubernetes] Remove `useCustomSecretForPatchContainerd` option and enable it by default. (@kvaps in https://github.com/cozystack/cozystack/pull/1104)
+* [apps] Increase default resource presets for Clickhouse and Kafka from `nano` to `small`. Update OpenAPI specs and readme's. (@kvaps in https://github.com/cozystack/cozystack/pull/1103 and https://github.com/cozystack/cozystack/pull/1105)
+* [linstor] Add configurable DRBD network options for connection and timeout settings, replacing scripted logic for detecting devices that lost connection. (@kvaps in https://github.com/cozystack/cozystack/pull/1094)
+
+## Dependencies
+
+* Update cozy-proxy to v0.2.0 (@kvaps in https://github.com/cozystack/cozystack/pull/1081)
+* Update Kafka Operator to 0.45.1-rc1 (@kvaps in https://github.com/cozystack/cozystack/pull/1082 and https://github.com/cozystack/cozystack/pull/1102)
+* Update Flux Operator to 0.23.0 (@kingdonb in https://github.com/cozystack/cozystack/pull/1078)
+
+## Documentation
+
+* [docs] Release notes for v0.32.0 and two beta-versions. (@NickVolynkin in https://github.com/cozystack/cozystack/pull/1043)
+
+## Development, Testing, and CI/CD
+
+* [tests] Add Kafka, Redis. (@gwynbleidd2106 in https://github.com/cozystack/cozystack/pull/1077)
+* [tests] Increase disk space for VMs in tests. (@kvaps in https://github.com/cozystack/cozystack/pull/1097)
+* [tests] Upd Kubernetes v1.33. (@kvaps in https://github.com/cozystack/cozystack/pull/1083)
+* [tests] increase postgres timeouts. (@kvaps in https://github.com/cozystack/cozystack/pull/1108)
+* [tests] don't wait for postgres ro service. (@kvaps in https://github.com/cozystack/cozystack/pull/1109)
+* [ci] Setup systemd timer to tear down sandbox. (@lllamnyp in https://github.com/cozystack/cozystack/pull/1092)
+* [ci] Split testing job into several. (@lllamnyp in https://github.com/cozystack/cozystack/pull/1075)
+* [ci] Run E2E tests as separate parallel jobs. (@lllamnyp in https://github.com/cozystack/cozystack/pull/1093)
+* [ci] Refactor GitHub workflows. (@kvaps in https://github.com/cozystack/cozystack/pull/1107)
+
+**Full Changelog**: https://github.com/cozystack/cozystack/compare/v0.32.0...v0.32.1